A ball of mass 0.320 kg that is moving with a speed of 5.9 m/s collides...
A ball of mass 0.320 kg that is moving with a speed of 5.9 m/s collides head-on and elastically with another ball initially at rest. Immediately after the collision, the incoming ball bounces backward with a speed of 3.1 m/s .
Part A
Calculate the velocity of the target ball after the collision.
Express your answer to two significant figures and include the appropriate units.
Part B
Calculate the mass of the target ball.
Express your answer to two significant figures and include the appropriate unit
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