10) A 7500 kg streetcar starts from rest when the conductor draws 5 kW of power from the line. If this input is maintained constant and if the mechanical efficien- cy of the motors is 90%, how long does the streetcar take to reach a speed of 10 km/hr? Neglect wind resistance. (Ι) OO -ao

10) A 7500 kg streetcar starts from rest when the conductor draws 5 kW of power from the line. If this input is maintained constant and if the mechanical efficien- cy of the motors is 90%, how long does the streetcar take to reach a speed of 10 km/hr? Neglect wind resistance. (Ι) OO -ao

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

10) A 7500 kg streetcar starts from rest when the conductor draws 5 kW of power
from the line. If this input is maintained constant and if the mechanical efficien-
cy of the motors is 90%, how long does the streetcar take to reach a speed of 10
km/hr? Neglect wind resistance.
ΟΙΟ
ao

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