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When is the work - done by a force is po...

When is the work - done by a force is positive and when is it negative ?

A

distance is positive

B

maximum distance travelled along direction of force applied

C

displacement is in direction of force applied

D

distance is negative

Text Solution

Verified by Experts

The correct Answer is:
C
Direction of displacement decides if work done is positive or negative.
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  • the work done by applied force is

    A
    10 J
    B
    50 J
    C
    100 J
    D
    150 J

  • Work done = force xx ………..

    A
    distance
    B
    velocity
    C
    time
    D
    displacement

  • the work done against force of friction is

    A
    8.7 J
    B
    10.7 J
    C
    7.8 J
    D
    12.7 J

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