Multiple Choice
Use the figure for the question. The graph shows the speed of a light truck of mass 4000 kg coasting on neutral down a level straight road.The truck is slowing down due to air resistance and rolling friction. 
-Suppose the driver decides to put the truck in gear and steps on the accelerator at 5s.What is the power needed to maintain the speed at 5s?
A) 20 kW
B) 40 kW
C) 60 kW
D) 80 kW
E) 100 kW
Correct Answer:
Verified
Correct Answer:
Verified
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