Use the figure to answer 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

Question

Use the figure to answer 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

Quizplus · Accepted Answer

The Answer of Use the figure to answer 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

Use the Figure to Answer the Question