Question

An object with a mass of `5 kg` is hanging from an axle with a radius of `12 m`. If the wheel attached to the axle has a radius of `16 m`, how much force must be applied to the wheel to keep the object from falling?

Answer 1

The force is `=36.75N`

Explanation:

The load is `L=5gN`

The radius of the axle is `r=12m`

The radius of the wheel is `R=16m`

The effort is `=(F)N`

Taking moments about the center of the axle

`F*16=5g*12`

`F=5g*12/16=36.75N`