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A rough inclined plane is placed on a ca...

A rough inclined plane is placed on a cart moving with a constant velocity u on horizontal ground. A block of mass M rest on the incline. Is any work done by force of friction between the block and incline ? Is there then a dissipation of energy ?

Text Solution

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As there is no relative motion between block and the inclined plane . Therefore , net work done by force of friction is zero . As no net work is done by force of friction , therefore there is no dissipation of energy .
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Knowledge Check

  • An inclined plane is moving with Constant velocity v = 4 m//s on a horizoontal surface as shown in figure. If a block of mass 2 kg is kept at top of the incline and their is no friction between the block and the incline, then the distance travelled by the incline till the block reaches bottom of the inclined is (g = 10 m//s^(2))

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