What is the work
to be done to increase the velocity from 18 km/hr to 19 km/hr if the mass of the care is
2000 kg.
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w=1/2mv^2
v=18km/h,m=2000k
w1=324000jul
when increase the velocity
v=19km/h,m=2000kg
w2=361000jul
w2-w1=37000jul
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