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Question: a ball of mass 0197 kg with a velocity of...

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A ball of mass 0.197 kg with a velocity of 1.43 î m/s meets a ball of mass 0.305 kg with a velocity of -0.398 î m/s in a head-on, elastic collision.

(a) Find their velocities after the collision.

v1f = ? m/s

v2f = ? m/s

(b) Find the velocity of their center of mass before and after the collision.

vcm, before = ? m/s

vcm, after = ? m/s

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