An object with a mass of $8 kg$ is hanging from an axle with a radius of $29 m$ . If the wheel attached to the axle has a radius of $21 m$ , how much force must be applied to the wheel to keep the object from falling?

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Answer 1 · 2017-07-16T08:15:40

The force is $=108.3N$

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The load $L=(8g)N$

Radius of axle $r=29m$

Radius of wheel $R=21m$

Taking moments about the center of the axle

$F*R=L*r$

$F*21=8g*29$

$F=(8*g*29)/21=108.3N$

The force is $F=108.3N$

An object with a mass of 8 kg8 kg is hanging from an axle with a radius of 29 m29 m. If the wheel attached to the axle has a radius of 21 m21 m, how much force must be applied to the wheel to keep the object from falling?