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Sahay Sir > Question Answers > MTG NEET Physics > Part 1 > Chapter 6 - Work, Energy and Power > A small block of mass 2kg is kept on a rough inclined surface of inclination θ=30^∘ fixed in a lift. The lift goes up with a uniform speed of 1ms^−1 and the block does not slide relative to the inclined surface. The work done by the force of friction on the block in a time interval of 2s is

A small block of mass 2kg is kept on a rough inclined surface of inclination θ=30^∘ fixed in a lift. The lift goes up with a uniform speed of 1ms^−1 and the block does not slide relative to the inclined surface. The work done by the force of friction on the block in a time interval of 2s is

A force F acting on a body depends on its displacement S as F∝S^1/3 . The power delivered by F will depend on displacement as: