7. (i) The engine of a car of mass 500 kg works at a constant rate of 15 kW. A non-gravitational resistance to the motion of the car is constant. The maximum speed of'the car on level ground is 5 ms!. (a) Find the acceleration of the car when it is travelling at a speed of ms' directly up a road of inclination a, where sin a =. Given that the car covers a distance of 20 m up the road, (b) Calculate the work done by the engine (ii) A particle of mass 5 kg moves on the inside surface of a smooth spherical bowl of radius 4 m, describine a horizontal circle at a distance 2 m below the centre of the bowl with uniform speed. Find (c) the speed of the particle, (d) the force acting towards the centre. (Take g as 10 ms.)

7. (i) The engine of a car of mass 500 kg works at a constant rate of 15 kW. A non-gravitational resistance to the motion of the car is constant. The maximum speed of'the car on level ground is 5 ms!. (a) Find the acceleration of the car when it is travelling at a speed of ms' directly up a road of inclination a, where sin a =. Given that the car covers a distance of 20 m up the road, (b) Calculate the work done by the engine (ii) A particle of mass 5 kg moves on the inside surface of a smooth spherical bowl of radius 4 m, describine a horizontal circle at a distance 2 m below the centre of the bowl with uniform speed. Find (c) the speed of the particle, (d) the force acting towards the centre. (Take g as 10 ms.)

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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