Question

2. A man lifts a mass of 20 kg to a height of 25 m
Assuming that the force of gravity on 1 kg mass
is 10 N, find the work done by the man
​

Answer 1

Answer:

Work done = force x displacement = 20N x 25 m = 500 Nm = 500 Joule

Explanation:

Answer 2

Answer:

Mass = 20kg

Height (distance) = 25m

force for 1kg of mass = 10N

hence

force for mass if 20kg = 200N

Now

$work \: done = distance \times force$

hence

work done = 25*200

= 5000J

hence work done is 5000Joule (J)

I hope this answer will be helpful for you