Question

Cathy, a 125lb actress playing Peter Pan, is hoisted above the stage in order to “fly” by a stagehand pulling on a compound pulley system that has 6 supporting strands with a force of 30lbs. A) What is the ideal mechanical advantage of the pulley?

Answer 1

The ideal mechanical advantage (IMA) of the pulley is 6

Step-by-step explanation:

The question parameters are;

The mass of the actress playing Peter Pan = 125 lb

The force applied by the stagehand to the pulley to hoist her = 30 lbs

The Ideal Mechanical Advantage (IMA) of a pulley = The number of strands (rope) the pulley has

Therefore, the Ideal Mechanical Advantage (IMA) of the given pulley with 6 strands = 6.