Question

With a pulley system, a force of only 50 lb can lift a 500-lb weight. what is the mechanical advantage if this system is 100% efficient? ma = 10 5 .10

Answer 1

Mechanical advantage of a pulley system is the ratio of load to effort. That is,

M.A = Load/Effort

We have,

Effort = Force applied = 50 lb

Load = Weight lifted = 500 lb

Substituting the values we get,

M.A = $\frac{500}{50}$ = 10

Mechanical advantage of the given pulley system is 10.