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A ball of mass m is moving with speed u ...

A ball of mass m is moving with speed u to the left along the positive x-axis, toward the origin. It strikes another ball of mass m/4 at rest at the origin. After collision the incoming ball is reflected back to the right an angle of `37^(@)` to the positive x-axis with a speed of m/5. Find the speed,and direction of motion of the other ball.

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The correct Answer is:
`[4.66 ,mu 185.9^(@)]`
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