A rough inclined plane is placed on a cart moving with a constant velocity u on horizontal ground. A block of mass M rests on the incline. Is any work done by force of friction between the block and incline? Is there then a dissipation of energy
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As block is at rest on inclined plane as shown in figure.
∴f=Mgsinθ
force of friction on body is due to the tendency of block M to slide Mgsinθ down over the inclined plane. As there is no displacement in block so work done by f and block is zero. As there is no work, so no dissipation of energy takes place.
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