Question

In a pulley system one movable and other fixed pulley is used. An effort of 450N is required to lift a load of 750N.Find the efficiency

Answer 1

In a pulley system one movable and other fixed pulley is used. An effort of 450N is required to lift a load of 750N.Find the efficiency

Solution :-

Pulley = movable and other fixed pulley

Effort = 450 N

Load = 750 N

Efficiency = ?

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Efficiency =

.

The answer is = 60 % .

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Formula of Efficiency .

1. Usefull output energy / Total input energy .
2. Usefull output power / Total input power .

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