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Ball 1 of mass 100 g and speed 1.5 m/s rolls right toward Ball 2 of...

Ball 1 of mass 100 g and speed 1.5 m/s rolls right toward Ball 2 of mass 150 g and 2.3 m/s which rolls left toward Ball 1. After they collide, Ball I rolls left at 2.0 m/s.
(a) What momentum does Ball 2 end with?
(b) the change in kinetic energy for both balls

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