Give an example where a force acting on a body results in zero work
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Examples of zero work : ... When a porter carrying some load on his head, he moves on a horizontal platform, Force due to gravity is down ward due to weight
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When the force applied or the displacement or both are zero, or force and displacement are perpendicular to each other, the work done is zero. Examples of zero work : When we push hard against a wall, the force we exert on the wall does no work, because displacement s is zero.
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