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A 1300-kg car delivers a constant 49 hp to the drive
Chapter 7, Problem 80GP(choose chapter or problem)
Problem 80GP
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.
Questions & Answers
QUESTION:
Problem 80GP
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.
ANSWER:
Step 1 of 4
The 1300-kg car is moving with constant power output of 49 hp.
(a) Calculate the acceleration of the car when the car is moving at 14 m/s speed.
(b) If the initial speed of the car is doubled, explain whether the acceleration will increase, decrease or remain the same.
(c) Calculate the car’s acceleration when the speed of the car is 28 m/s.
(a)