A 10,000 kg streetcar starts from rest when the conductor powers on the electric drive motor. If this power is maintained at a constant 5 kW and if the mechanical efficiency of the motor is 90%, how long does the streetcar take to reach a speed of 15 km/hr? Neglect wind resistance.

A 10,000 kg streetcar starts from rest when the conductor powers on the electric drive motor. If this power is maintained at a constant 5 kW and if the mechanical efficiency of the motor is 90%, how long does the streetcar take to reach a speed of 15 km/hr? Neglect wind resistance.

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Description: A 10,000 kg streetcar starts from rest when theconductor powers on the electric drive motor. If thispower is maintained at a constant 5 kW and if themechanical efficiency of the motor is 90%, how longdoes the streetcar take to reach a speed of 15 km

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 78P: The man of the preceding problem consumes approximately 1.05107J (2500 food calories) of energy per...

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