stevendr04 stevendr04

07-10-2019
Engineering

contestada

You're trying to lift a 298 pound object with a first class lever. You're pushing down on one side of the lever 9ft from the fulcrum, and the object is on the other side 2 ft from the fulcrum. Assuming no friction (balanced moments), how much force do you have to apply to lift the object?

Respuesta :

MathPhys MathPhys

07-10-2019

Answer:

66.2 lbf

Explanation:

∑τ = Iα

F (9 ft) + (298 lbf) (-2 ft) = 0

F = 66.2 lbf

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