Answered: the motor is running at 25 rad/s, the…

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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1. The machine B is belt-driven by the electric motor A that has an efficiency
of 85%. When the motor is running at 25 rad/s, the tension in the upper part of thebelt is 90N greater than in the lower part. Determine the power consumption of the motor in horsepower (hp).

2. When the system described in Prob. 18.9 is running at 40 rad/s, the power
consumption of the motor is 2.4 hp. Calculate the torque in (a) the output shaft of motor A; and (b) the input shaft of machine B.

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