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A ball of mass m is shot with a velocity...

A ball of mass m is shot with a velocity u at an angle 0 with the horizontal which strikes the box of mass M resting at the edge of a smooth table as shown in figure . After striking the box ball falls down vertically. Find the value of u such that the box is raised to the point A shown in figure. Also find the horizontal distance l from which shot was fired.

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The correct Answer is:
`[(Msqrt(2gR))/(mcos0),(2M^(2)R"tan"0)/(m^(2))]`
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