Physics, asked by krish98880, 2 months ago

why rolling a drum is work against friction ?

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Answered by Anonymous

1

Answer:

Answer. It does rotational work. We can view this work as a medium between gravitational potential energy and rotational kinetic energy. So when it accelerates down the incline, friction force takes some of the gravitational potential energy and turns it into rotational kinetic energy for the cylinder.

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