An object with a mass of $5 kg$ is hanging from an axle with a radius of $12 m$ . If the wheel attached to the axle has a radius of $42 m$ , how much force must be applied to the wheel to keep the object from falling?

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Answer 1 · 2017-02-25T16:56:58

The force is $=14N$

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The load is $=5gN$

The radius of axle is $=12m$

The radius of wheel is $=42m$

The effort is $=EN$

Taking moments about the center of the axle

$5g*12=E*42$

$E=(12*5g)/42=1.43gN$

Force =1.43gN=14N

An object with a mass of 5 kg5 kg is hanging from an axle with a radius of 12 m12 m. If the wheel attached to the axle has a radius of 42 m42 m, how much force must be applied to the wheel to keep the object from falling?