Question

What is an example of an inelastic rotational collision?

A) Two gears rotating at different speeds mesh together

B) A fly is deflected from a spinning axle

C) This type of collision cannot happen.

D) A lump of putty falls onto the windshield of a car driving at constant velocity

Answer 1

option A Seems correct to me. While two gears are rotating after the collision the mesh up (means they will move with same angular velocity)