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 `42 m`, how much force must be applied to the wheel to keep the object from falling?

Answer 1

The force is `=14N`

Explanation:

The load is `=5gN`

The radius of axle is `=12m`

The radius of wheel is `=42m`

The effort is `=EN`

Taking moments about the center of the axle

`5g*12=E*42`

`E=(12*5g)/42=1.43gN`

Force =1.43gN=14N