A worker exerts 85.0 lb on a lever to lift a weight. The distance from the...
A worker exerts 85.0 lb on a lever to lift a weight. The distance from the worker to the fulcrum is 8.00 ft; the distance from the weight to the fulcrum is 2.00 ft. Find the weight lifted. Find the mechanical advantage of the lever.
Homework Answers
here,
force exerted by the worker ,F = 85 lb
distance of the worker from the fulcrum , x1 = 8 ft
distance of weight from the fulcrum , x2 = 2 ft
let the weight be w
taking moment of force about the Fulcrum
F * x1 - w * x2 = 0
85 * 8 - w * 2 = 0
w = 340 lb
the weight lifted is 340 lb
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