1.

A body of mass 2 kg is allowed to slide down along a quadrant of a circle from the horizontal position. In reaching to the bottom, Its velocity is 6m/sec. The work done in overcoming the friction is 10J. The radius of circle is (g=10 ms^(-2))

Answer»

2 mgl
4 m
1.5 m
2.3 m

ANSWER :D


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