Two identical 7-kg bowling balls roll toward each other.The one on the left is moving at +4 m/s while the one on the right is moving at −4 m/s.What is the velocity of each ball after they collide elastically?
A)Neither is moving.
B)−4 m/s,+4 m/s
C)+4 m/s,−4 m/s
D)−14 m/s,+14 m/s
E)+14 m/s,-14 m/s

Question

Two identical 7-kg bowling balls roll toward each other.The one on the left is moving at +4 m/s while the one on the right is moving at −4 m/s.What is the velocity of each ball after they collide elastically?
A)Neither is moving.
B)−4 m/s,+4 m/s
C)+4 m/s,−4 m/s
D)−14 m/s,+14 m/s
E)​+14 m/s,-14 m/s

Quizplus · Accepted Answer

The Answer of Two identical 7-kg bowling balls roll toward each other.The one on the left is moving at +4 m/s while the one on the right is moving at −4 m/s.What is the velocity of each ball after they collide elastically?
A)Neither is moving.
B)−4 m/s,+4 m/s
C)+4 m/s,−4 m/s
D)−14 m/s,+14 m/s
E)​+14 m/s,-14 m/s

Two Identical 7-Kg Bowling Balls Roll Toward Each Other