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

Answer 1

The force is `=26.1N`

Explanation:

The load L=(8g)N#

Radius of axle `r=16m`

Radius of wheel `R=48m`

Taking moments about the center of the axle

`F*R=L*r`

`F*48=8*g*16`

`F=(8*g*16)/48=8/3g=26.1N`