1. Describe a system of two objects and give an example of a process in which to
ID: 1780077 • Letter: 1
Question
1. Describe a system of two objects and give an example of a process in which total momentum is conserved and kinetic energy is not conserved.
repelling-magnet end facing toward cart 1. Practice teamwork. Two students, quicky their hands out of the way, set the carts moving toward each other so that they bounce from each other's magnetic fields near the center of the track. Make the collision happen and take measurements as before. Before Compute the total original momentum of the two-cart system and the total final momentum. Compare the momentum values Compute the total kinetic energy of the pair of carts before the collision and separately afterwards. Compare the original and final values with each other. Can A Cart B After Cart A Cart B Questions 1. Describe a system of two objects and give an example of a process in which total momentum is conserved and kinetic energy is not conserved. 2. Describe a system of two objects and give an example of a process in which both total momentum and kinetic energy are conserved.Explanation / Answer
A)
consider block A and block B moving towards each other and the two blocks stick to each other after the collision.
In this situation , the total momentum before and after collision remain same . on the other hand , the kinetic energy after the collision is not same as the kinetic energy before collision because some amount of energy is lost during collision. These kind of collisions are knowns as inelastic collisions
B)
consider block A and block B moving in same direction, collides with block A moving in opposite direction after the collision
In this situation , the total momentum before and after collision remain same . on the other hand , the kinetic energy after the collision is same as the kinetic energy before collision because no amount of energy is lost during collision. These kind of collisions are knowns as elastic collisions
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