An object with a mass of $18 kg$ is hanging from an axle with a radius of $16 cm$ . If the wheel attached to the axle has a radius of $22 cm$ , how much force must be applied to the wheel to keep the object from falling?

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Answer 1 · 2017-03-05T14:31:41

The force is $=128.3N$

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The load is $=18gN$

Taking moments about the center of the axle

$18g*0.16=E*0.22$

$E=(18g*0.16)/0.22$

$=128.3N$

An object with a mass of 18 kg18 kg is hanging from an axle with a radius of 16 cm16 cm. If the wheel attached to the axle has a radius of 22 cm22 cm, how much force must be applied to the wheel to keep the object from falling?