Question

What is the work done by a man who lifts a mass of 40kg through a height of 2m? (g=10m/s²)

Answer 1

Answer:

Work done= force×displacement

Force = mass ×acceleration

Here mass =40 kg

Here acceleration is g i.e 10 m/s^2

Force=40×10=400

Here displacement is height =2m

Work done=400×2=800j answer

Answer 2

Explanation:

work done = mgh

= 40x2x10

= 800 joule