1.

A pendulum oflength 1 m and having a bob of mass 1 g is pulled aside through an angle 60^(@) with the verical and then released. The power delivered by all the forces acting on the bob when the pendulum makes 30^(@) with the vertical is ______ (g = 10 ms^(-2))

Answer»

13.5 mW
7.5 m W
17.32 mW
24.5 mW

Answer :A


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