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1. |
A 2-ton vehicle travels at 20m/s on a road where the frictional force is 10% of the weight of the vehicle. What is the power required? (Assume g = 10m/s2) |
A. | 220 kW |
B. | 240 kW |
C. | 420 kW |
D. | 440 kW |
Answer» E. | |