Question

A ball with mass of 0.025 kg is thrown horizontally with velocity of 1.5 m/s toward...

A ball with mass of 0.025 kg is thrown horizontally with velocity of 1.5 m/s toward a wall in positive X direction. It collides with the wall, then bounces back to the left with velocity of 1.0 m. The Collison takes 0.015s.

  1. What is the total initial momentum?
  1. b) What is the total final momentum?

c)What is change in momentum?

d)What is the impulse?

e) What is the average force acting on the wall by the ball during the collision?

  1. What is the total kinetic energy before the collision?

  1. What is the total kinetic energy after the collision?
  1. What is change in momentum?

i) What happens to the lost kinetic energy? Explain clearly

J)Is this an elastic or inelastic collision? Explain clearly

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Answer #1

A perfectly elastic collision is defined as one in which there is no loss of kinetic energy in the collision. An inelastic collision is one in which part of the kinetic energy is changed to some other form of energy in the collision.


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