An object with a mass of $8 kg$ is hanging from an axle with a radius of $9 m$ . If the wheel attached to the axle has a radius of $18 m$ , how much force must be applied to the wheel to keep the object from falling?

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Answer 1 · 2017-03-12T14:28:15

The force is $=39.2N$

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The load $=8gN$

Radius of axle $r=9m$

Radius of wheel $R=18m$

Taking moments about the center of the axle

$F*18=8g*9$

$F=(8g*9)/18=4g=39.2N$

An object with a mass of 8 kg8 kg is hanging from an axle with a radius of 9 m9 m. If the wheel attached to the axle has a radius of 18 m18 m, how much force must be applied to the wheel to keep the object from falling?