Question

the work done is 0 if in which direction body moves

Answer 1

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The work done on a body moving in a circular path is also zero. This is because, when a body moves in a circular path, then the centripetal force acts along the radius of the circle, and it is at right angles to the motion of the body

Explanation:

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Answer 2

If direction Force and Direction of Displacement are mutually perpendicular to each other. Then work done is 0. It means angle between them will be 90°

$\longrightarrow \sf{W\ =\ \vec{F}. \vec{s}} \\ \\ \\ \\ \longrightarrow \sf{W\ =\ \vec{F} \vec{s} \cos 90^{\circ}} \\ \\ \\ \\ \longrightarrow \sf{W\ =\ \vec{F} \vec{s}\ \times\ 0} \\ \\ \\ \\ \Large{\implies{\boxed{\boxed{\sf{Work\ =\ 0\ J}}}}}$