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Raju Yadav
Asked: 2022-11-04T02:17:49+05:30 In:

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

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
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  1. Correct Answer – 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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