Question

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4. Define i) work in rotational motion
ii) Power in rotational motion
111) Energy in rotational motion
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Answer 1

Answer:

Explanation:

If a body performs rotational kinetic motion as well as linear motion, then the total energy of body is equal to the sum of kinetic energy of rotational motion and kinetic energy of linear motion. The net rotational work done by the forces is equal to the change in rotational kinetic energy of the body.

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Answer 2

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work = force×displacement

here, displacement is nill, work is not done

p=w/t =0/t =0

energy=0