A 1300-kg car delivers a constant 49 hp to the drive wheels. We assume the car is traveling on a level road and that all fractional forces may be ignored. (a) What is the acceleration of this car when its speed is 14 m/s? (b) If the speed of the car is doubled, does its acceleration increase, decrease, or stay the same? Explain. (c) Calculate the car’s acceleration when its speed is 28 m/s.
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