# An object with a mass of #4 kg# is hanging from an axle with a radius of #6 cm#. If the wheel attached to the axle has a radius of #12 cm#, how much work would it take to turn the wheel #8 cm#?

##### 1 Answer

May 14, 2016

1.568J

#### Explanation:

The mass of the object lifted =

The radius of the axle

The Circumference of the axle

The radius of the Wheel attached with the axle

The Circumference of the Wheel

When wheel turns

So When wheel turns

So the work done to turn the wheel by 8cm is to work done to lift

the weight against gravity by

So work done