A force of 100 N acting on a body of mass m ,for 4 second gives it a velocity of 20 m/s find the mass of the body if it was initially at rest

Asked by Kumarprince1392 | 22nd Apr, 2019, 10:47: AM

Expert Answer:

Acceleration produce by this force = change in velocity/ time taken = 20/4 = 5m/s 
As we know Force F = ma
So m = F/a = 100/5 = 20 kg

Answered by Ankit K | 22nd Apr, 2019, 11:29: AM