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Question

A block and tackle system has $$5$$ pulleys. If an effort of $$1000$$ N is needed in the downward direction to raise a load of $$4500$$ N, calculate:
the mechanical advantage.


Solution

A block and tackle system has $$5$$ pulleys. $$(n = 5)$$
Effort $$= 1000 \,N$$
Load $$= 4500 \,N$$
The mechanical advantage M.A $$= \dfrac{load}{effort} = \dfrac{4500}{1000} = 4.5$$

Physics

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