A moving ball (speed "y") collides with another at rest. After the collision, the first ball is at rest. Find the ratio of their masses if the collision is perfectly elastic. What is the speed of the second ball
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A moving ball (speed "y") collides with another at rest. After the collision, the first ball is at rest.
Find the ratio of their masses if the collision is perfectly elastic.
What is the speed of the second ball?
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