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Give two reasons, why the efficiency of a single movable pulley system is not 100%?

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asked Dec 6 in Class X Science by navnit40 (-1,119 points)

Give two reasons, why the efficiency of a single movable pulley system is not 100%?

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answered Dec 6 by priya12 (-10,126 points)

(i) Due to friction in the movable parts of the pulley.
(ii) Due to weight of the movable pulley.

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