A block and tackle pulley system has five pulleys in all and is 90% efficient. Calculate the effort required to lift a load of 1000N.

222.22N

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2000N

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200N

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400N

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Solution

The correct option is A
222.22N

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A block and tackle pulley system has five pulleys in all and is 90% efficient. Calculate the effort required to lift a load of 1000N.

The correct option is A 222.22N

The correct option is A
222.22N