An object with a mass of $4 kg$ is hanging from an axle with a radius of $9 m$ . If the wheel attached to the axle has a radius of $6 m$ , how much force is needed to raise the object?

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Answer 1 · 2017-06-18T11:18:35

The force is $=58.8N$

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The load $L=(4g)N$

Radius of axle $r=9m$

Radius of wheel $R=6m$

Taking moments about the center of the axle

$F*R=L*r$

$F*6=4*g*9$

$F=(4*g*9)/6=58.8N$

The force is $F=58.8N$

An object with a mass of 4 kg4 kg is hanging from an axle with a radius of 9 m9 m. If the wheel attached to the axle has a radius of 6 m6 m, how much force is needed to raise the object?