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1. |
The force required to tow a vehicle at constant velocity is directly proportional to the magnitude of velocity raised to the first power. It requires 1000 W to tow with a velocity of 10 m/s. How much power is required to tow at a velocity of 8 m/s? |
A. | 320 W |
B. | 640 W |
C. | 160 W |
D. | 80 W |
Answer» C. 160 W | |