Question

An object with a mass of `15 kg` is hanging from an axle with a radius of `24 m`. If the wheel attached to the axle has a radius of `39 m`, how much force must be applied to the wheel to keep the object from falling?

Answer 1

The force is `=90.5N`

Explanation:

The load L=(15g)N#

Radius of axle `r=24m`

Radius of wheel `R=39m`

Taking moments about the center of the axle

`F*R=L*r`

`F*39=15*g*24`

`F=(15*g*24)/39=90.5N`