Question

An object with a mass of `8 kg` is hanging from an axle with a radius of `16 m`. If the wheel attached to the axle has a radius of `96 m`, how much force must be applied to the wheel to keep the object from falling?

Answer 1

The force is `=13.1N`

Explanation:

The load `=(8g)N`

Radius of axle `r=16m`

Radius of wheel `R=96m`

Taking moments about the center of the axle

`F*96=8*g*16`

`F=(8*g*16)/96=13.1N`