An object with a mass of $8 kg$ is hanging from an axle with a radius of $15 cm$ . If the wheel attached to the axle has a radius of $60 cm$ , how much force must be applied to the wheel to keep the object from falling?

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Answer 1 · 2017-05-10T05:56:16

The force is $=19.6N$

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The load L=(8g)N#

Radius of axle $r=0.15m$

Radius of wheel $R=0.60m$

Taking moments about the center of the axle

$F*R=L*r$

$F*0.60=8*g*0.15$

$F=(8*g*0.15)/0.16=19.6N$

An object with a mass of 8 kg8 kg is hanging from an axle with a radius of 15 cm15 cm. If the wheel attached to the axle has a radius of 60 cm60 cm, how much force must be applied to the wheel to keep the object from falling?