Question

1. A boy pulls up a bucket of water from a well 80 m deep. If the mass of the bucket, along with
water is 20 kg, calculate the amount of work done by the boy. [Take g
10 m/s2] ​

Answer 1

Answer

Depth/height = 80m

Mass = 20kg

Gravitational force = 10m/s2

Work Done By The Boy = mgh

                                        =20*10*80

                                        =16,000Joule