Question: Collars A and B, of the same mass m, are moving toward each other with the velocities shown. Knowing that the coefficient of restitution between

Collars A and B, of the same mass m, are moving toward each other with the velocities shown. Knowing that the coefficient of restitution between the collars is 0 (plastic impact), show that after impact

(a) Te common velocity of the collars is equal to half the difference in their speeds before impact,

(b) The loss in kinetic energy is 1/4m (vA +vB)2.

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