Question

1. Write the the expression of work done by a force.
2. State two factors on which the work done on a body depends.
3. The potential energy of a body if mass 0.5 kg increases by 100 Joule when it is taken to the top of a tower from ground. If force of gravity on 1 kg is 10 N, what is the height of the tower?​

Answer 1

Answer:

HEY MATE HERE IS YOUR ANSWER

1. Work done = Force × displacement

2.The work done on a body depends upon two factors: Magnitude of the force (F), and. The displacement through which the body moves (s)

3. Mass = 0.5kg, g = 10m/s^2, ΔPE = 100J, height = ?

PE = mgh

100 = 0.5×10×h

100 = 5h

h = 100/5 = 20m

Height = 20m