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if a number of forces act on a body and ...

if a number of forces act on a body and the body is in static or dynamic force equilibrium , then .

A

Work done by individual forces must be zero

B

Net work done is `+ve`

C

Net work done is `-ve`

D

Net work done is zero

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • 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

  • An unbalanced force acts on a body. The body

    A
    must remain at rest
    B
    must move with uniform velocity
    C
    must be accelerated
    D
    must move along a circle

  • If no force acts on a body, it will

    A
    get deshaped
    B
    move with increasing speed
    C
    either remain at rest or move in a straight line
    D
    break

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