Question

An object with a mass of `24 kg` is hanging from an axle with a radius of `4 m`. If the wheel attached to the axle has a radius of `20 m`, how much force must be applied to the wheel to keep the object from falling?

Answer 1

The force is `=47N`

Explanation:

The load `L=(24g)N`

Radius of axle `r=4m`

Radius of wheel `R=20m`

Taking moments about the center of the axle

`F*R=L*r`

`F*20=24g*4`

`F=(24*g*4)/20=47N`

The force is `F=47N`