Chapter 8. Momentum and Momentum Conservation. Momentum. The linear momentum of an object of mass m moving with a velocity is defined as the product of the mass and the velocity SI Units are kg m / s Vector quantity, the direction of the momentum is the same as the velocity’s.
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Momentum and Momentum Conservation
A 60 grams tennis ball traveling at 40m/s is returned with the same speed. If the contact time between racket and the ball is 0.03s, what is the force on the ball?
A 5kg ball moving at 2 m/s collides head on with another 3kg ball moving at 2m/s in the opposite direction. If the 3kg ball rebounds with the same speed. What is the velocity of the 5 kg ball after collision?
4 kg rifle shoots a 50 grams bullet. If the velocity of the bullet is 280 m/s, what is the recoil velocity of the rifle?
Railroad car (10,000kg) travels at 10m/s and strikes another railroad car (15,000kg) at rest. They couple after collision. Find the final velocity of the two cars. What is the energy loss in the collision?
Head on elastic collision with object B at rest before collision.
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