An object with a mass of $1 kg$ is hanging from an axle with a radius of $16 m$ . If the wheel attached to the axle has a radius of $8 m$ , how much force must be applied to the wheel to keep the object from falling?

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Answer 1 · 2017-04-25T17:52:19

The force is $=19.6N$

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The load L=(1g)N#

Radius of axle $r=16m$

Radius of wheel $R=8m$

Taking moments about the center of the axle

$F*R=L*r$

$F*8=1*g*16$

The force is

$F=(1*g*16)/8=2g=19.6N$

An object with a mass of 1 kg1 kg is hanging from an axle with a radius of 16 m16 m. If the wheel attached to the axle has a radius of 8 m8 m, how much force must be applied to the wheel to keep the object from falling?