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In a pool game, the cue ball, which has an initial speed of 8 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 25° with the original direction of the cue ball.
1. Find the direction of motion of the cue ball after the collision.
° (from the original line of motion)
2. Find the speed of each ball. Assume that the balls have equal mass.
a. m/s (cue ball)
b. m/s (eight ball)
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