Question

Cathy, a 460-N actress playing Peter Pan, is hoisted above the stage in order to "fly" by a stagehand pulling with a force of 60. N on a rope wrapped around a pulley system. What is the actual mechanical advantage of the pulley system?

Answer 1

Answer:7.67

Explanation:

Given

Weight of Cathy $W_1=460\ N$

Force exerted by rope $F=60\ N$

Mechanical advantage is the ratio of load by Pulling effort      

$M.A.=\frac{Load}{Pulling\ effort}$

$M.A.=\frac{460}{60}$

$M.A.=7.67\ N$