Question

n the given figures, three cases are shown in which a constant force is trying to move an object. The work done will be positive in​

Answer 1

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Answer 2

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B) II Only

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For (I)

●Force and displacement(s) are in opposite direction.

● Hence the work done will be negative.

For (II)

● Force and displacement are in the same direction.

● Hence the work done will be positive.

For (III)

● Force is perpendicular to the displacement.

● Hence the work done will be zero.