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.

Answer 1

A block and tackle system has $5$ pulleys. $(n=5)$

Effort $=1000N$

Load $=4500N$

The mechanical advantage M.A $=\frac{load}{effort}=\frac{4500}{1000}=4.5$