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In a pool game, the cue ball, which has an initial speed of 5.0 m/s, make an elastic collision with the eight ball, which is initially at rest. After the collision, the eight ball moves at an angle of 35° to the original direction of the cue ball.
(a) Find the direction of motion of the cue ball after the collision.
° (from the original line of motion)
(b) Find the speed of each ball. Assume that the balls have equal mass.
m/s (cue ball)
m/s (eight ball)
A 55-kg swimmer is standing on a stationary 210-kg floating raft. The swimmer then runs off the raft horizontally with a velocity of +4.6 meter per second relative to the shore. Calculate the recoil velocity that the raft would have if there were ..
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