A weight lifter does work in …
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Rajeev Malhotra 8 years, 4 months ago
When a weight lifter lifts a weight from ground, he does work against gravity. We define Work as Work = Force x Displacement . In this case Force acting on the object is equal to its weight and displacement is equal to height through which weight has been lifted. he does no work in holding the weight up because there is no displacement.
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