Question

A car of mass 500 kg is moving with velocity 20 m/s. after time 20 sec its velocity changes to 40 m/s. Calculate the work
ane on the car during the motion​

Answer 1

Answer:

W = Change in kinetic energy

K 1/2mv*2

K 1/2*500*20

K = 5000

K = 1/2*500*40

K = 10,000

W = 10,000- 5000

W = 5000J