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Tarzan, who weighs 875 N, swings from a ...

Tarzan, who weighs 875 N, swings from a vine through the jungle. How much work is done by the vine as he drops, through a vertical distance of 4 m ?

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The moment Tarzan drops from the vine, tension (F) in the vine becomes zero i.e., F= 0. Therefore, work done by the tension in the vine, `W = F xx s = 0 xx 4m =0`.
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