State the conditions for the work done to be zero by a force ?
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When there is no force or no displacement.. or the direction of displacement is perpendicular to the direction of force then the work done is zero. ... When the displacement is zero OR when the force acts at right angles to the direction of the displacement then the work done is zero
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When there is no force or no displacement.. or the direction of displacement is perpendicular to the direction of force then the work done is zero. ... When the displacement is zero OR when the force acts at right angles to the direction of the displacement then the work done is zero.Mar 2, 2018
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