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A ball having a certain mass is moving with a velocity 'x' on a horizontal surface. The ball collides with a stationary ball having four times its mass.

The first ball immediately comes to rest after collision. With velocity will the second ball move?

1) 0.25x
2) 0.5x
3) 4x
4) 1x


The answer is given detailed in the attachment.
0 0 0
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