A woman uses a single fixed pulley to lift a bucket of water from a well. The bucket and water together weigh 250N but the woman has to apply an effort of 300N to lift the bucket. Calculate the mechanical advantage of the set-up.

0.83

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150

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1.2

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4.0

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Solution

The correct option is A
0.83

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Q. Which of the following can be used to lift a bucket of water out of a well?

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A woman uses a single fixed pulley to lift a bucket of water from a well. The bucket and water together weigh 250N but the woman has to apply an effort of 300N to lift the bucket. Calculate the mechanical advantage of the set-up.

The correct option is A 0.83

The correct option is A
0.83