Two Identical 6-Kg Bowling Balls Roll Toward Each Other

Two identical 6-kg bowling balls roll toward each other.The one on the left is moving at +3 m/s while the one on the right is moving at −3 m/s.What is the velocity of each ball after they collide elastically?

A) Neither is moving.
B) −3 m/s,+3 m/s
C) +3 m/s,−3 m/s
D) −13 m/s,+13 m/s
E) ​+13 m/s,-13 m/s

Correct Answer:

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