Question

The work done to pull a basket of water of capacity 10litre from a well of depth 4m is=

Answer 1

Answer:

I think this is the answer

Explanation:

Work done by the person is the change in potential energy of the bucket and the rope.

Given, the rope has a uniform mass m. So the center of mass for the rope is at half of the length of the rope.

So, it will be at a distance h/2 from the bottom.

Work done = Change in PE of bucket+Change in PE of rope

W=Mgh+mg

2

h

=(M+

2

m

)gh

hope this helps you

Answer 2

$2.4 \times 10 ^{26}$

This Could Be Correct Answer.