A car, of mass 1400 kg, moves with a steady speed of 20 m s' on a straight rough road 6. with its engine working at a constant rate of 36 kW. (a) Calculate the resistance R to the motion of the car if the road is horizontal. Given that R is proportional to the square of the speed v of the car, (b) show that R- When the car is descending a straight road inclined at an angle 0 to the horizontal, where sin 8-1/20, and the resistance to the motion of the car remains unchanged, the speed of the car is 16 ms when its acceleration is 3/7 ms . (c) Calculate the rate at which the engine is working.

A car, of mass 1400 kg, moves with a steady speed of 20 m s' on a straight rough road 6. with its engine working at a constant rate of 36 kW. (a) Calculate the resistance R to the motion of the car if the road is horizontal. Given that R is proportional to the square of the speed v of the car, (b) show that R- When the car is descending a straight road inclined at an angle 0 to the horizontal, where sin 8-1/20, and the resistance to the motion of the car remains unchanged, the speed of the car is 16 ms when its acceleration is 3/7 ms . (c) Calculate the rate at which the engine is working.

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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