Question

what is the work to be done to increase the velocity from 18 km per hour to 19 km per hour if the mass of the car is 2000 kg

Answer 1

Hey ....

m=2000kg
u=18km/hr=5m/s
v=19=5.3m/s
wd=1/2mv^2-1/2mu^2
=300 j..

Thankyou