An object with a mass of $6 kg$ is hanging from an axle with a radius of $7 m$ . If the wheel attached to the axle has a radius of $28 m$ , how much force must be applied to the wheel to keep the object from falling?

Question

1299 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-09-21T06:27:05

The force is $=14.7N$

enter image source here

The load is $L=6gN$

The radius of the axle is $r=7m$

The radius of the wheel is $R=28m$

The effort is $=FN$

Taking moments about the center of the axle

$F*28=6g*7$

Plugging in the value of $g=9.8ms^-2$

$F=6g*7/28=14.7N$

The force is $F=14.7N$

An object with a mass of 6 kg6 kg is hanging from an axle with a radius of 7 m7 m. If the wheel attached to the axle has a radius of 28 m28 m, how much force must be applied to the wheel to keep the object from falling?