An object with a mass of $1 kg$ is hanging from an axle with a radius of $16 m$ . If the wheel attached to the axle has a radius of $84 m$ , how much force must be applied to the wheel to keep the object from falling?

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Answer 1 · 2017-09-03T07:02:30

The force is $F=1.87N$

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The load is $L=1gN$

The radius of the axle is $r=16m$

The radius of the wheel is $R=84m$

The effort is $=FN$

Taking moments about the center of the axle

$F*84=1g*16$

$F=1g*16/84=1.87N$

The force is $F=1.87N$

An object with a mass of 1 kg1 kg is hanging from an axle with a radius of 16 m16 m. If the wheel attached to the axle has a radius of 84 m84 m, how much force must be applied to the wheel to keep the object from falling?