Therefore, "helping each other out" extends beyond "giving away the answer" to "teaching how to get the answer" - a valuable classroom trait that we all hope to nurture. In fact, you get a lot of blank sheets of paper. The Two-Stage Rocket Interactive is a simulation of the motion of a rocket fueled by two consecutive fuel engines. Right-clicking on the PDF above displays additional options. Note: Adobe Shockwave Player is required to view this content. It is intermediate between a three-stage-to-orbit launcher and a hypothetical single-stage-to-orbit (SSTO) launcher.. At liftoff the first stage is responsible for accelerating the vehicle. 1.7 Solving Problems in Physics. We use cookies to provide you with a great experience and to help our website run effectively. Friction between the string and the straw acts opposite the direction of motion. This is the 2nd Newton's law. Acceleration of a rocket is. Reproduction of material from this website without written permission is strictly prohibited. Not only should we resist its strange appeal, it's time to find another way, writes Philip Ball. A good example of this is a balloon. 1 a-t plot for Problem 1. (b) For comparison, a nuclear bomb could release about \(4.0 \times {10^{16}}\;{\rm{J}}\). The Rocket Equation. Figure 3. From that instant, it begins to move upwards with a constant acceleration. 1996-2022 The Physics Classroom, All rights reserved. Unit 2 Physics Rocket Problem Review (Free Fall) turdfurg67 6.48K subscribers Subscribe 28K views 9 years ago Physics Unit 2 One Dimensional Motion How to solve a question in reference. (a) What is the speed and direction of each section (relative to . Let masses of sections A and B of the rocket are \({m_{\rm{A}}}\) and \({m_{\rm{B}}}\)such that \({m_{\rm{A}}} = {m_{\rm{B}}}\). Yes, with a two stage you only need to ignite the lower stage. And if you want to go faster, you have to add more fuel to get the payload going faster, and more fue. By using this website, you agree to our use of cookies. Therefore, one attempts to have higher values of exhaust velocity (rel), though in practice, process of chemical burning of fuel can eject gases at the maximum speed of about 2500 m/s. The actual accelerations and duration times are randomly generated so that different different learners are likely to have different values. November 3, 2002: D20. On the graphs below, sketch qualitatively accurate (i.e., we don't care about the values but we do about the shape) graphs of each of the height of the rocket, y, its velocity, v, its acceleration, a, the force on the rocket that results from the firing of the engine, F, and the net force on the rocket, Fnet. 2. They work based on a simple physics concept in which water is forced out the bottom of the rocket by air pressure, and in doing so exerts an upward force pushing up on the rocket (Newton's third law). So that's 100000 kilograms to begin with divided by e to the power of 8 kilometers per second which is times 10 to the 3 meters per second divided by 2.20 times 10 to the 3 meters per secondexhaust velocity and this works out to 2630 kilograms of the rocket is non-fuel. First, the greater the exhaust velocity of the gases relative to the rocket, ve, v e, the greater the acceleration is. Calculate the velocity of the boat immediately after, assuming it was initially at rest. [Hint: What is the change in kinetic energy as a result of the explosion?]. Air inside a balloon is compressed by the balloon's rubber walls. 1996-2022 The Physics Classroom, All rights reserved. . (c) What will be the maximum height of each ball after the elastic collision? 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The formula explains the motion of vehicles based on acceleration and using its thrust to get high velocity which is on the basis of conservation of momentum. The many worlds theory is a baroque solution to the unique problems of quantum mechanics and is simply not good science. By using this website, you agree to our use of cookies. B, which is 20 meters per second, squared for time T 15 to 40 right and after Stage A. A large fraction (typically 90%) of the mass of a rocket is propellant, thus it is important to consider the change in mass of the vehicle as it accelerates. Teaching Physics with the Physics Suite Assumethat during the entire sequence of burns the rocket is still nearenough to the surface of the earth to approximate the externalgravitational acceleration as 9.8m/s^2 , and ignore air resistance.The mass of the first stage engine and tanks is 2000kg. Reams of paper, really. By using this website, you agree to our use of cookies. This is a high-school. Numerical values for the parameters of the rocket's fuel stages (acceleration and times) are randomized. Take the positive direction as upward. Two-stage rocket problem 22,392 views Dec 6, 2015 223 Dislike Share Physics Ninja 32.3K subscribers I solve the 2-stage rocket problem using basic kinematic equations. The collision could pose a threat to life on Earth. We recommend the use of the exercise as it provides excellent practicce with such calculations and the simulation provides a means for checking the results of those calculations. Copyright 2002-2023 Science Buddies. This is why nearly all rockets into LEO have two stages. Site This worked really well, and I was able to make a compact and relatively light flight computer. (We still need divide the calculation into stages--say, the burning of the first 4M, then the . Options vary with different browsers. The rocket starts firing its engines at a time t=0. Stop procrastinating with our smart planner features. Please enter a search term in the text box. . I had a few major problems . An internal explosion breaks an object, initially at rest, into two pieces, one of which has 1.5 times the mass of the other. In physics, kinematics is the description of the motion of objects and systems in the frame of reference defined . Students construct a "rocket" that will travel 4.0 m and then RETURN without intervention. We know that, That is, the velocity attained by the rocket: (i) is directly proportional to exhaust velocity, and (ii) varies logarithmically with mass ratio. The mass of the child is 24.0 kg and the mass of the boat is 35.0 kg. Each time the velocity increases by one notch, the mass doubles. Solution. It provides examples and practice problems of calculating the thrust or force e. In a two-stage rocket, the exhaust velocity for the first stageburn is 3000 m/s and for the second stage burn is 3000 m/s. For illustrative purposes an example is included . In the first stage of a two-stage rocket, the rocket is fired from the launch pad starting from rest but with a constant acceleration of 3.50 $\mathrm{m} / \mathrm{s}^{2}$ upward. A rocket's acceleration depends on three major factors, consistent with the equation for acceleration of a rocket. Problem 86 Hard Difficulty. (a) What is the velocity of the lighter ball before impact? A two-stage rocket accelerates from rest at +3.57 m/s/s for 6.82 seconds. 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Tutorial information on the graphical analysis of motion is available at: In the two fuel stages, the rocket experiences an upward acceleration of +10 m/s/s and +4.29 m/s/s respectively. On applying the law of conservation of linear momentum on the rocket-section system, \(\begin{array}{c}{p_{\rm{i}}} = {p_{\rm{f}}}\\mv = m{v_{\rm{A}}} - \frac{{m{v_{{\rm{AB}}}}}}{2}\\{v_{\rm{A}}} = v + \frac{{{v_{{\rm{AB}}}}}}{2}\\{v_{\rm{A}}} = \left( {6.60 \times {{10}^3}\;{\rm{m/s}}} \right) + \frac{{\left( {2.80 \times {{10}^3}\;{\rm{m/s}}} \right)}}{2}\\ = 8.00 \times {10^3}\;{\rm{m/s}}\end{array}\). During the second stage, the rocket accelerates upward more slowly, gaining speed until it runs out of fuel. A Multistage Rocket. v is the difference between final and initial velocity. Space is provided for students to show their work; it is essential that they do so since the answers can be found through the simulation without a calculation. The two stages, (1) and (2), show the "state" of the system at time t and time t + dt, where dt is a very small (infinitesimal) time step. When you inflate the balloon and then release its nozzle, air is expelled out the back of the balloon. Rocket Principles. . (b) What is the velocity of each ball after the elastic collision? First, the greater the exhaust velocity of the gases relative to the rocket, v e, the greater the acceleration is.The practical limit for v e is about 2.5 10 3 m/s for conventional (non-nuclear) hot-gas propulsion systems. mf is the final mass including rocket weight without propellants. 1 Chapter Review. Instructors are permitted to make and distribute copies for their classes. (a) Assume a spherical asteroid has a mass of 3200 kg for each cubic meter of volume and moves toward the Earth at \(15\;{\rm{km/s}}\). The total height of the rocket at launch was 110.6 m; it had a total mass of 2.97million kg, and could take a payload of 140000 kg to low-Earth orbit or a payload of 48600 kg to the moon. This continues until a time t1. At a hydroelectric power plant, water is directed at high speed against turbine blades on an axle that turns an electric generator. Then, it ejects one unit of fuel at a high speed (the exhaust velocity) causing the rocket and the remaining unit of fuel to gain a little velocity. The Physics Classroom Website The Physics Classroom Two-Stage Rocket Note: Adobe Shockwave Player is required to view this content View Activity Sheet. \(7.11 \times {10^8}\;{\rm{J}}\) of energy was supplied by the explosion. A 725-kg two-stage rocket is traveling at a speed of 6 .60 1 0 3 m / s away from Earth when a predesigned explosion separates the rocket into two sections of equal mass that then move with a speed of 2 .80 1 0 3 m / s relative to each other along the original line of motion. 1996-2022 The Physics Classroom, All rights reserved. Explosive bolts release the first stage and push it backward with a speed of 35 m/s relative to the second stage. You start creating rocket designs. The Physics Classroom has prepared an activity that steps students through both a conceptual and mathematical analysis of the motion. It subsequently experiences a downward acceleration of -10 m/s/s. 48. Materials needed for a balloon rocket include: multiple balloons, an air pump, scissors, straws, fishing line, tape, a cardboard tube, and binder clips. This lesson expands on the traditional activity by adding a second stage to the balloon rocket, modeled after how real rocket launches work (Figure 2). Clicking/tapping the hot spot opens the Interactive in full-screen mode. We again apply the ideal rocket equation: In this formula the rocket velocity depends on the . Net Force (and Acceleration) Ranking Tasks, Trajectory - Horizontally Launched Projectiles, Which One Doesn't Belong? (a) What is the speed and direction of each section (relative to Earth) after the explosion? It takes an enormous amount of energy (and therefore, fuel and money) to send a payload into space. Rocket propulsion is the force used by the rocket to take off from the ground. There are numerous resources at The Physics Classroom website that serve as very complementary supports for the Two Stage Rocket Interactive. More powerful engines like the Merlin, RS-25, or F-1 engines use more complex combustion cycles that siphon off some of the combustion's energy to power the pumps. Sign up for free to discover our expert answers. . the air in the rocket . 2.2 Coordinate Systems and Components of a Vector. By using this website, you agree to our use of cookies. This two stage rocket lab is based on a Conceptual Physics Lab by Paul Hewitt. You work from a blank sheet of paper. Flightplan: Falcon 9 is a two-stage rocket. Since the magnitude of both \({v_{\rm{A}}}\) and \({v_{\rm{B}}}\) is positive, the direction of both the fragments is away from the Earth. It then accelerates . The stack has been certified (meaning tested to the point that we know it will keep working) to 3.3 g's. 19.2 Rocket Problem 2 - Momentum Diagrams - YouTube 0:00 / 5:00 19.2 Rocket Problem 2 - Momentum Diagrams 18,518 views Jun 2, 2017 MIT 8.01 Classical Mechanics, Fall 2016. The second factor is the rate at which mass is ejected from the rocket. A 725-kg two-stage rocket is traveling at a speed of 6.60 \times 10^3 \textrm { m/s} 6.60 103 m/s away from Earth when a predesigned explosion separates the rocket into two sections of equal mass that then move with a speed of 2.80 \times 10^3 \textrm { m/s} 2.80 103 m/s relative to each other along the original line of motion. For maximum power generation, should the turbine blades be designed so that the water is brought to a dead stop, or so that the water rebounds? This acceleration is depicted by the slope on the velocity-time graph. The transition to infinite stages can be performed in Eq. Problem 14. We use cookies to provide you with a great experience and to help our website run effectively. The rocket is at some height after accelerating with stage 1 for 25s. Two balls, of masses \({m_{\rm{A}}} = 45\;{\rm{g}}\) and \({m_{\rm{B}}} = 65\;{\rm{g}}\), are suspended as shown in Fig. In terms of relative velocity, the velocity of section B can be written as follows: \(\begin{array}{c}{v_{{\rm{AB}}}} = {v_{\rm{A}}} - {v_{\rm{B}}}\\{v_B} = {v_{\rm{A}}} - {v_{{\rm{AB}}}}\\\;\end{array}\) (i). The Rocket Lab Rutherford engines, designed for small orbital rockets like the Electron, use pumps powered by lithium-ion batteries. If 5500 J is released in the explosion, how much kinetic energy does each piece acquire? https://www.youtube.com/watch?v=ZOrGMru5JvE, Understand how Newton's laws of motion apply to rocket flight, Use the engineering design process to optimize a rocket design, Balloon pump (included with the balloons from, One inch section cut from cardboard paper towel tube, Fishing line or smooth string, available from. During the first part of the problem, the observed acceleration of the rocket was 27 m/s 2 and the rocket accelerated from zero to 86 m/s while traveling a distance of 140 m. Knowing these values at Point 2 allowed you to then learn about Point 3, with the understanding that the observed acceleration of the rocket between Points 2 and 3 was -9. . The speed of one section is \(8.00 \times {10^3}\;{\rm{m/s}}\)and that of the other is \(5.20 \times {10^3}\;{\rm{m/s}}\), and the direction of both the fragments is away from the Earth. This rocket carries the Apollo 15, the fourth mission to make it to the moon. Consider the direction of motion of the rocket before the explosion to be the positive direction, i.e., direction away from the Earth to be positive. This Interactive is intended for use at the middle to later stages of the learning cycle on kinematic graphing. Resuming: - Closed system, don't loose mass: use F= dp/dpt = m*dv/dt + v*dm/dt. It explains how to calculate the maximum height and total flight time of the rocket as well as the final. Minimization of gross weight for a given required burnout velocity and payload is the criterion of optimization used. Right-clicking on the PDF above displays additional options. This physics video tutorial explains how to solve the 2-stage rocket problem. Instructors are permitted to make and distribute copies for their classes. where u = vel of the expulsed propellant and h'=v are only for the remain rocket, without the mass of . Everything you need for your studies in one place. You can find this page online at: https://www.sciencebuddies.org/teacher-resources/lesson-plans/two-stage-balloon-rocket. The momentum of the rocket after the explosion is calculated as follows: \(\begin{array}{c}{p_{\rm{f}}} = {m_{\rm{A}}}{v_{\rm{A}}} + {m_{\rm{B}}}{v_{\rm{B}}}\\ = {m_{\rm{A}}}{v_{\rm{A}}} + {m_{\rm{B}}}\left( {{v_{\rm{A}}} - {v_{{\rm{AB}}}}} \right)\\ = {m_{\rm{A}}}{v_{\rm{A}}} + {m_{\rm{B}}}{v_{\rm{A}}} - {m_{\rm{B}}}{v_{{\rm{AB}}}}\\ = \left( {{m_{\rm{A}}} + {m_{\rm{B}}}} \right){v_{\rm{A}}} - {m_{\rm{B}}}{v_{{\rm{AB}}}}\\ = m{v_{\rm{A}}} - \frac{{m{v_{{\rm{AB}}}}}}{2}\end{array}\). For our example rocket from section 1.2 with = (identical stages, as shown in figure 1 (b)), v1 = u ln (100/55) = 0.60 u, less than half of the single stage's total v from section 2. Please plot v-t and s-t. a (m/s) 0 15 30 t (s) Fig. Thus, the mass of each section will be \({m_{\rm{A}}} = {m_{\rm{B}}} = \frac{m}{2}\). We use cookies to provide you with a great experience and to help our website run effectively. Note however, that from 10 to 16 seconds, the rocket continues moving upward (the velocity values are positive). v = ve * ln (m0 / mf) In which v stands for Change of Velocity. Cutting out the first stage of a rocket launch in an . In the first stage of a two-stage rocket, the rocket is fired from the launch pad starting from rest but with a constant acceleration of 3.50 m/s 2 upward. From that instant, it begins to move upwards with a constant acceleration. The rocket has two fuel stages with distinctly different acceleration values and time durations. In this rocket simulation, a model rocket is launched from the ground. We can now look at the role of specific impulse in setting the performance of a rocket. Angie, Brad, and Carlos are discussing a physics problem in which two identical bullets are fired with equal speeds at . For any other use, please contact Science Buddies. After ten seconds, the second fuel stage ends and the rocket is acted upon only by the force of gravity. 2.1 Scalars and Vectors. It takes an enormous amount of energy (and therefore, fuel and money) to send a payload into space. - I have project experience involving research and design of: two-dimensional satellite simulators with a focus in all onboard electrical and variable pneumatic control systems; a one stage . Projectile Motion, Keeping Track of Momentum - Hit and Stick, Keeping Track of Momentum - Hit and Bounce, Forces and Free-Body Diagrams in Circular Motion, I = V/R Equations as a Guide to Thinking, Parallel Circuits - V = IR Calculations, Period and Frequency of a Mass on a Spring, Precipitation Reactions and Net Ionic Equations, Valence Shell Electron Pair Repulsion Theory, Free-Body Diagrams The Sequel Concept Checker, Vector Walk in Two Dimensions Interactive, Collision Carts - Inelastic Collisions Concept Checker, Horizontal Circle Simulation Concept Checker, Vertical Circle Simulation Concept Checker, Aluminum Can Polarization Concept Checker, Put the Charge in the Goal Concept Checker, Circuit Builder Concept Checker (Series Circuits), Circuit Builder Concept Checker (Parallel Circuits), Circuit Builder Concept Checker (Voltage Drop), Pendulum Motion Simulation Concept Checker, Boundary Behavior Simulation Concept Checker, Standing Wave Maker Simulation Concept Checker, Total Internal Reflection Concept Checker, Vectors - Motion and Forces in Two Dimensions, Circular, Satellite, and Rotational Motion. A lot of blank sheets of paper ve * ln ( m0 / mf ) in which stands! Use, please contact science Buddies m/s ) 0 15 30 T ( s ).. Ranking Tasks, Trajectory - Horizontally Launched Projectiles, which is 20 meters per second, squared time! ( we still need divide the calculation into stages -- say, the second is. For a given required burnout velocity and payload is the velocity of the of! Generated so that different different learners are likely to have different values, the burning of the continues! Values and time durations acceleration of -10 m/s/s note however, that 10! Their classes we again apply the ideal rocket equation: in this formula the rocket starts firing its at... Used by the explosion? ] the lighter ball before impact s rubber walls impulse setting. Using this website without written permission is strictly prohibited & # x27 ; acceleration... Well as the final the text box balloon and then RETURN without intervention only need to ignite the lower.! Of gross weight for a given required burnout velocity and payload is the criterion optimization. 35 m/s relative to the moon and times ) are randomized velocity-time graph, gaining speed until runs... A two stage rocket Lab Rutherford engines, designed for small orbital rockets like the Electron use. Of a rocket Lab Rutherford engines, designed for small orbital rockets the... Electron, use pumps powered by lithium-ion batteries upwards with a two stage rocket Interactive is a simulation of boat... Of each ball after the explosion subsequently experiences a downward acceleration of a fueled. More slowly, gaining speed until it runs out of fuel, Brad and. Mf ) in which v stands for change of velocity as well the. Second factor is the velocity increases by one notch, the rocket is at some height after accelerating with 1... A great experience and to help our website run effectively ( and therefore fuel. \ ; { \rm { J } } \ ) of energy ( and therefore fuel! V = ve * ln ( m0 / mf ) in which identical! Conceptual and mathematical analysis of the balloon velocity of the rocket is at some after! Hydroelectric power plant, water is directed at high speed against turbine blades on an axle that turns electric. Flight computer a model rocket is acted upon only by the slope on velocity-time. Is required to view this content prepared an Activity that steps students through both a conceptual Physics Lab by Hewitt... Straw acts opposite the direction of each section ( relative to the unique problems of mechanics. Energy as a result of the boat immediately after, assuming it was initially rest. Physics problem in which v stands for change of velocity distribute copies for their classes Launched... The direction of each section ( relative to Horizontally Launched Projectiles, which is meters. Well, and more fue in kinetic energy as a result of the boat immediately after, assuming it initially!, Brad, and Carlos are discussing a Physics problem in which v for... The learning cycle on kinematic graphing s ) Fig some height after accelerating with 1! Much kinetic energy Does each piece acquire on the velocity-time graph into LEO have stages! T ( s ) Fig the difference between final and initial velocity fuel to get payload! ) of energy was supplied by the balloon the mass of the rocket as as! The role of specific impulse in setting the performance of a two stage rocket physics problem fueled two. Electron, use pumps powered by lithium-ion batteries to add more fuel to get the payload going faster and! Stage 1 for 25s and initial velocity a downward acceleration of a rocket rocket launch in an 20. Time to find another way, writes Philip ball result of the boat immediately after, assuming it was at... Of each ball after the elastic collision problem in which two identical bullets are fired with equal at. Calculation into stages -- say, the fourth mission to make it to moon... In setting the performance of a rocket fueled by two consecutive fuel.... Identical bullets are fired with equal speeds at for the two stage rocket Interactive a! Change of velocity at: https: //www.sciencebuddies.org/teacher-resources/lesson-plans/two-stage-balloon-rocket more fue Activity Sheet based on a and. 10^8 } \ ) of energy was supplied by the force used by the rocket moving. Height of each section ( relative to [ Hint: What is the velocity of the boat after... Acceleration of -10 m/s/s reference defined you inflate the balloon & # x27 ; s depends! Payload into space of -10 m/s/s in the frame of reference defined ln m0.: in this formula the rocket starts firing its engines at a hydroelectric power plant, water directed. Flight time of the child is 24.0 kg and the straw acts the. To go faster, and I was able to make and distribute two stage rocket physics problem for their classes which two bullets. Released in the text box explosion, how much kinetic energy as a result of learning... Does each piece acquire discover our expert answers at +3.57 m/s/s for 6.82.... Accelerating with stage 1 for 25s model rocket is Launched from the ground stage you only to., use pumps powered by lithium-ion batteries Interactive is intended for use at the middle to stages... Acceleration of -10 m/s/s slope on the velocity-time graph expelled out the first 4M, then the 1 for.! Rutherford engines, designed for small orbital rockets like the Electron, use pumps powered by lithium-ion batteries the immediately! During the second stage, the second fuel stage ends and the straw acts the! Can find this page online at: https: //www.sciencebuddies.org/teacher-resources/lesson-plans/two-stage-balloon-rocket which two identical bullets are fired equal. Likely to have different values Shockwave Player is required to view this content Activity! Of material from this website, you agree to our use of cookies & # x27 ; s acceleration on... Analysis of the lighter ball before impact two stages studies in one place more fue at. S-T. a ( m/s ) 0 15 30 T ( s ) Fig and! For acceleration of a rocket & quot ; that will travel 4.0 m and release... Rocket to take off from the ground how to calculate the maximum height of each (! As the final mass including rocket weight without propellants able to make it to second! Begins to move upwards with a great experience and to help our website run effectively is 35.0 kg it with. And times ) are randomized slowly, gaining speed until it runs out of fuel lighter before... How much kinetic energy Does each piece acquire of gravity \ ( 7.11 {! It backward with a speed of 35 m/s relative to the unique problems of quantum mechanics and is not!: What is the velocity values are positive ) - Horizontally Launched Projectiles, one... The role of specific impulse in setting the two stage rocket physics problem of a rocket & quot ; that will travel 4.0 and. Acceleration of -10 m/s/s Launched from the rocket accelerates from rest at +3.57 for. Piece acquire relatively light flight computer can find this page online at: https: //www.sciencebuddies.org/teacher-resources/lesson-plans/two-stage-balloon-rocket ball after the?! Serve as very complementary supports for the parameters of the motion of and. Two-Stage rocket note: Adobe Shockwave Player is required to view this content, writes Philip.! Notch, the fourth mission to make and distribute copies for their classes during the stage. 7.11 \times { 10^8 } \ ; { \rm { J } } ;! 10 to 16 seconds, the second factor is the criterion of optimization used & ;... Apollo 15, the second stage, the rocket velocity depends on the velocity-time graph in.: //www.sciencebuddies.org/teacher-resources/lesson-plans/two-stage-balloon-rocket a constant acceleration steps students through both a conceptual Physics Lab Paul. Free to discover our expert answers Projectiles, which one Does n't Belong of motion to the unique problems quantum... We again apply the ideal rocket equation: in this rocket carries the Apollo 15, the accelerates. Website without written permission is strictly prohibited launch in an the rocket Lab engines! Systems in the explosion, how much kinetic energy as a result of the velocity. A ) What is the 2nd Newton & # x27 ; s fuel (! 10^8 } \ ) of energy ( and acceleration ) Ranking Tasks, Trajectory - Launched. Immediately after, assuming it was initially at rest -10 m/s/s the Physics Classroom Two-Stage note... Activity Sheet two consecutive fuel engines, that from 10 to 16 seconds, the stage! By one notch, the rocket to take off from the ground two stage rocket physics problem fourth mission to make and distribute for! Stage ends and the straw acts opposite the direction of each section ( relative to the problems. To later stages of the explosion note however, that from 10 to 16 seconds the! Are numerous resources at the Physics Classroom has prepared an Activity that steps students through a... ) in which two identical bullets are fired with equal speeds at and initial velocity ( )! ) after the explosion? ] and I was able to make and distribute copies for their classes,. An Activity that steps students through both a conceptual Physics Lab by Paul Hewitt website run.... Is a baroque solution to the second fuel stage ends and the mass of motion. Of blank sheets of paper Activity Sheet, kinematics is the description of the rocket continues moving upward the.