An object with a mass of 6 kg is hanging from an axle with a radius of 7 m. If the wheel attached to the axle has a radius of 48 m, how much force must be applied to the wheel to keep the object from falling?

1 Answer
Dec 30, 2017

The force is =8.575N

Explanation:

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The load is L=6gN

The radius of the axle is r=7m

The radius of the wheel is R=48m

The effort is =FN

The acceleration due to gravity is g=9.8ms^-2

Taking moments about the center of the axle

F*48=6g*7

F=(6g*7)/48=8.575N

The force is F=8.575N