An object with a mass of $6 kg$ is hanging from an axle with a radius of $54 m$ . If the wheel attached to the axle has a radius of $4 m$ , how much force must be applied to the wheel to keep the object from falling?

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Answer 1 · 2017-03-14T10:39:56

The force is $=793.8N$

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The load $=6gN$

Radius of axle $r=54m$

Radius of wheel $R=4m$

Taking moments about the center of the axle

$F*4=6g*54$

$F=(6g*54)/4=81g=793.8N$

An object with a mass of 6 kg6 kg is hanging from an axle with a radius of 54 m54 m. If the wheel attached to the axle has a radius of 4 m4 m, how much force must be applied to the wheel to keep the object from falling?