Along Roxas Boulevard, a certain group of men pushes a 29400-N car along a horizontal ground from rest to a speed of v, doing 18 kJ of work in the process. During this time, the car moves 15 m. Neglecting friction between the car and ground, a. what is the magnitude of v in m/s? b. what is the horizontal force exerted by the men? c. how many watts are dissipated in 3/4 of a minute?

Along Roxas Boulevard, a certain group of men pushes a 29400-N car along a horizontal ground from rest to a speed of v, doing 18 kJ of work in the process. During this time, the car moves 15 m. Neglecting friction between the car and ground, a. what is the magnitude of v in m/s? b. what is the horizontal force exerted by the men? c. how many watts are dissipated in 3/4 of a minute?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter7: Work, Energy, And Energy Resources

Section: Chapter Questions

Problem 3PE: (a) Calculate the work done on a 1500-kg elevator car by its cable to lift it 40.0 m at constant...

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