A block of mass m is stationary with res...

A block of mass m is stationary with respect to the wedge of mass M moving with uniform speed v on horizontal surface. Work done by friction force on the block in t seconds is

zero

`(-mgvt) / 2 sin 2 theta`

`- (mgvt)/2`

`(-mgvt) / 2 sin ^(2) theta`

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NTA MOCK TESTS-NTA NEET SET 57-PHYSICS

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