Question

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

Answer 1

M=2000kg

v1 = 18km/hr

v2=19km/hr

KE =1/2*m*(v2-v1)^2

KE= 1/2*2000*(19-18)^2

KE = 1000J