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A ball moving at 5.10 m/s strikes a stationary ball of the same mass. After the collision, the first ball moves at 4.18 m/s, at an angle of 35.0 degree with respect to the original line of motion.
(a) Calculate the velocity of the second ball after collision.
m/s
° (with respect to the original line of motion, include the sign of your answer; consider the sign of the first ball's angle)
(b) Find was the collision inelastic or elastic?
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