Consider the collision of a moving puck with a second, initially stationary puck

Question

Consider the collision of a moving puck with a second, initially stationary puck, as shown in the figure below undergoing the law of the conservation of momentum m1v1 = m1v1f + m2v2f.

1. Suppose the pucks start spinning after the collision, whereas they were not before. Will this affect the momentum conservation results?

2. Momentum is conserved in either an elastic or inelastic collision, that is, whether or not kinetic energy is conserved. Why, then, is it important that the air table be frictionless?

3. Jamie finds that the total y-component of the outgoing momentum is consistently non- zero. Besides not correctly choosing the x-axis to be parallel to the direction of motion of the incoming puck, what else could be causing this discrepancy towards Jamie's results?

Successive positions of m, before collision Successive positions of m after collision V. m2 before colision Successive positions of m2 after collision

Explanation / Answer

1.If object start spinning,angular momentum will be conserved so no effect even they start spinning

2.yes ,it will be affected as friction is an external force and during collision,it will effect

3.The surface will not be fricrionless completely and there will be air resistance .

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