A rough inclined plane is placed on car moving with a constant velocity $u$ on horizontal ground. A block of mass $ M$ rests on the inclined plane. Is any work done by force of friction between the block and inclined plane ? Is there then a dissipation of energy ?
A rough inclined plane is placed on car moving with a constant velocity $u$ on horizontal ground. A block of mass $ M$ rests on the inclined plane. Is any work done by force of friction between the block and inclined plane ? Is there then a dissipation of energy ?
Yes, the friction,
$f=\mathrm{Mg} \sin \theta \quad(\because \mathrm{M}$ is at rest)
Since, block is not in motion so, no work is done by the friction no dissipation of energy takes place.
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