An object with a mass of 3kg is hanging from an axle with a radius of 9m. If the wheel attached to the axle has a radius of 12m, how much force is needed to raise the object?

1 Answer
Sep 10, 2017

The force is greater than =22.05N

Explanation:

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The load is L=3gN

The radius of the axle is r=9m

The radius of the wheel is R=12m

The effort is =FN

Taking moments about the center of the axle

F12=3g9

F=3g912=22.05N

The force is F=22.05N