A ball of mass 0.100 kg traveling with 5.00 m/s had a head on collision with a ball of mass 0.200 kg initially at rest. After

Question

A ball of mass 0.100 kg traveling with 5.00 m/s had a head on collision with a ball of mass 0.200 kg initially at rest. After the collision, the second ball has a velocity of 2.00 m/s to the same direction as the first ball. (a) Find the velocity of the first ball. (b) Find the mechanical energy loss during the collision (c) what would happens to the lost energy? (d) Is this collision elastic or inelastic?

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