Question

A ten grams ball glides to the left at a speed of 0.4 meters per second...

A ten grams ball glides to the left at a speed of 0.4 meters per second on a frictionless flat surface at the OC fair skating rink. The ball collides head-on, elastically, with another larger ball with mass 30 grams which was gliding to the right with a speed of 0.2 meters per second.

A After the collision, what is the final velocity of each ball.

B What is the change in momentum for each ball? How do they compare to each other?

C What is the change in kinetic energy for each ball? How do they compare to each other?

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Answer #1

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in parts B and C, i found the answers from conservation equations of momentum and kinetic energy.

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