An object with a mass of $2 k g$ $2 kg$ is hanging from an axle with a radius of $3 m$ $3 m$ . If the wheel attached to the axle has a radius of $4 m$ $4 m$ , how much force is needed to raise the object?

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Answer 1 · 2017-05-16T05:06:54

The force is $= 14.7 N$ $=14.7N$

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The load L=(2g)N#

Radius of axle $r = 3 m$ $r=3m$

Radius of wheel $R = 4 m$ $R=4m$

Taking moments about the center of the axle

$F \cdot R = L \cdot r$ $F*R=L*r$

$F \cdot 4 = 2 \cdot g \cdot 3$ $F*4=2*g*3$

$F = \frac{6 \cdot g}{4} = 14.7 N$ $F=(6*g)/4=14.7N$

An object with a mass of 2kg2 kg is hanging from an axle with a radius of 3m3 m. If the wheel attached to the axle has a radius of 4m4 m, how much force is needed to raise the object?