Question

An object with a mass of `7 kg` is hanging from an axle with a radius of `6 m`. If the wheel attached to the axle has a radius of `32 m`, how much force must be applied to the wheel to keep the object from falling?

Answer 1

The force is `=12.86N`

Explanation:

The load is `=7gN`

The radius of axle is `=6m`

The radius of wheel is `=32m`

The effort is `=Ekg`

Taking moments about the center of the axle

`7g*6=E*32`

`E=(42g)/32=1.31gN`

Force =1.31gN=12.86N