An object with a mass of $3 k g$ $3 kg$ is hanging from an axle with a radius of $2 m$ $2 m$ . If the wheel attached to the axle has a radius of $1 m$ $1 m$ , how much force is needed to raise the object?

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Answer 1 · 2017-03-26T07:16:51

The force is $= 58.8 N$ $=58.8N$

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The load $= (3 g) N$ $=(3g)N$

Radius of axle $r = 2 m$ $r=2m$

Radius of wheel $R = 1 m$ $R=1m$

Taking moments about the center of the axle

$F \cdot 1 = 3 \cdot g \cdot 2$ $F*1=3*g*2$

$F = \frac{3 \cdot g \cdot 2}{1} = 6 g = 58.8 N$ $F=(3*g*2)/1=6g=58.8N$

An object with a mass of 3kg3 kg is hanging from an axle with a radius of 2m2 m. If the wheel attached to the axle has a radius of 1m1 m, how much force is needed to raise the object?