An object with a mass of $2 kg$ is hanging from an axle with a radius of $2 m$ . If the wheel attached to the axle has a radius of $25 m$ , how much force must be applied to the wheel to keep the object from falling?

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Answer 1 · 2018-01-11T18:06:38

The force is $F=1.6N$

www.odicis.org

The load is $L=2gN$

The radius of the axle is $r=2m$

The radius of the wheel is $R=25m$

The effort is $=FN$

The acceleration due to gravity is $g=9.8ms^-2$

Taking moments about the center of the axle

$F*25=2g*2$

$F=(2g*2)/25=1.6N$

The force is $F=1.6N$

An object with a mass of 2 kg2 kg is hanging from an axle with a radius of 2 m2 m. If the wheel attached to the axle has a radius of 25 m25 m, how much force must be applied to the wheel to keep the object from falling?