Question

Calculate the work done on a body of mass 20 kg for lifting it 2 meter above the ground.

• A. 196 Joule
• B. 98 Joule
• C. 392 Joule
• D. 19.6 Joule

Answer 1

Answer:

C. 392 Joule

• here work done is equal to the potential energy PE = mgh W= 20*9.8*2=392 Joule