# An object with a mass of #5 kg# is hanging from an axle with a radius of #12 cm#. If the wheel attached to the axle has a radius of #38 cm#, how much work would it take to turn the wheel a length equal to the circumference of the axle?

##### 1 Answer

Apr 23, 2016

As shown in the figure

The radius of the Wheel

The radius of the Axle

The mass of the object

The Weightof the object

**P** is the applied force.

The Displacement of Applied force(P)=Circumference of the axle

**The working principle of wheel -axle** system may be compared with the working principle of **First Kind of lever**

So

Hence the Work done