Question

An object with a mass of `24 kg` is hanging from an axle with a radius of `12 m`. If the wheel attached to the axle has a radius of `42 m`, how much force must be applied to the wheel to keep the object from falling?

Answer 1

The force is `=67.2N`

Explanation:

The load `=(24g)N`

Radius of axle `r=12m`

Radius of wheel `R=42m`

Taking moments about the center of the axle

`F*42=24*g*12`

`F=(24*g*12)/42=67.2N`