Question

If a object mass of 1 kg have been given a force and the object gets change in velocity by 4m/s to 8m/s so what is the work done by the force

Answer 1

Answer:

W=F.s

Or we can say

W= change in its mechanical energy

:. 1/2* m* v^2 - 1/2* m* u^2= W

0.5*1*64-0.5*1*16=W

:. W=24J