Question

An object with a mass of `8 kg` is hanging from an axle with a radius of `32 m`. If the wheel attached to the axle has a radius of `15 m`, how much force must be applied to the wheel to keep the object from falling?

Answer 1

The force is `=167.25N`

Explanation:

The load `=(8g)N`

Radius of axle `r=0.32m`

Radius of wheel `R=0.15m`

Taking moments about the center of the axle

`F*0.15=8*g*0.32`

`F=(8*g*0.32)/0.15=167.25N`