EXAMPLE 1: Two air carts have total masses m1=320 grams and m2=195 grams. Assume that there are absolutely, positively, undoubtedly, unequivocally no frictional or other external, horizontally directed forces acting on the system of the two air carts. Initially, cart #1 is moving to the right and cart #2 is moving to the left. Cart #1 has a speed of 0.324 m/s, and Cart #2 has a speed of 0.766 m/s. Then the two carts collide and stick together. Cart 1 Photogates Cart 2 a. Using your knowledge of physics, determine the expected momentum of the system AFTER the collision. Make sure you designate which direction is positive. Remember units! (-0.0457 kg m/s, with positive being to the right) b. What is the total kinetic energy before the collision? Again, remember your units! (0.0740 J) c. Consider the KE after the collision. In this ideal experiment, do you expect it to go down, go up, or remain the same? Why? (It goes down, because anytime objects collide and stick together, KE always goes down. Method 2: Use momentum conservation to find that the velocity afterward is -0.0887 m/s, then use the KE formula to find KE of 0.00203 J. This is indeed far less KE than there was before the collision.)

EXAMPLE 1: Two air carts have total masses m1=320 grams and m2=195 grams. Assume that there are absolutely, positively, undoubtedly, unequivocally no frictional or other external, horizontally directed forces acting on the system of the two air carts. Initially, cart #1 is moving to the right and cart #2 is moving to the left. Cart #1 has a speed of 0.324 m/s, and Cart #2 has a speed of 0.766 m/s. Then the two carts collide and stick together. Cart 1 Photogates Cart 2 a. Using your knowledge of physics, determine the expected momentum of the system AFTER the collision. Make sure you designate which direction is positive. Remember units! (-0.0457 kg m/s, with positive being to the right) b. What is the total kinetic energy before the collision? Again, remember your units! (0.0740 J) c. Consider the KE after the collision. In this ideal experiment, do you expect it to go down, go up, or remain the same? Why? (It goes down, because anytime objects collide and stick together, KE always goes down. Method 2: Use momentum conservation to find that the velocity afterward is -0.0887 m/s, then use the KE formula to find KE of 0.00203 J. This is indeed far less KE than there was before the collision.)

Name: Collisions in 1-D: Linear Momentum and KEBe able to describe the type
Uploaded: 2024-03-20T06:57:37.000Z
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Description: Collisions in 1-D: Linear Momentum and KEBe able to describe the types of collisions (elastic and inelastic) and whether ornot momentum and/or kinetic energy is conserved for each of these.Given the masses of 2 carts on an ideal frictionless airtrac

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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