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if a number of force act on a body and t...

if a number of force act on a body and the body is in state or dynamic force equalibrium , then .

A

work done by any individual force mucst be zero

B

Net work done by all the force is `+ve`

C

Net work done by all the force is `-ve`

D

Net work done by all the force is zero

Text Solution

Verified by Experts

The correct Answer is:
D
When a number of force act on a body and the body is in state or dymanic equilibrium (it mean `F_(max) = 0)`, then individual force may do the work , but net work done by all the force will be zero
[Note, In such a situation, work done by some forces is positive while by others is equally negative, so that net work becomes zero.]`.
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