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.
-Estimate the work done per second by the retarding force at t = 5s.
A) 20 kJ
B) 40 kJ
C) 60 kJ
D) 80 kJ
E) 100 kJ
Correct Answer:

Verified
Correct Answer:
Verified
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