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Question
Block A, with a mass of 2.0 kg, moves along the xaxis with a velocity of 5.0 m/s in the positive x direction. It suffers an elastic collision with block B, initially at rest, and the blocks leave the collision along the xax is. If B is much more massive than A, the velocity of A after the collision is:
A) 0 m/s
B) +5.0 m/s
C) -5.0 m/s
D) +10 m/s
E) -10 m/s
Answer
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