A man uses a single fixed pulley to lift a bucket of water from a well. The bucket and water together weigh 750N but the man has to apply an effort of 900N to lift the bucket. Calculate the efficiency of the set-up.

83.33 %

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20.00 %

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33.33 %

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75.00 %

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Solution

The correct option is A
83.33 %

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A man uses a single fixed pulley to lift a bucket of water from a well. The bucket and water together weigh 750N but the man has to apply an effort of 900N to lift the bucket. Calculate the efficiency of the set-up.

The correct option is A 83.33 %

The correct option is A
83.33 %