Question

How far must a 200 kg pile driver fall if it is capable of doing 13000 J of work ?

Answer 1

Here,

The potential energy of the object must equal the work done by it.

So, mgh = 13000

=> 200 × 9.8 × h = 13000

=> h = 6.63 m

This is the height through which the pile diver must fall.