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Basic Mechanics Question Paper

Basic Mechanics

Course:Bachelor Of Electrical And Electronics Engineering

Institution: Moi University question papers

Exam Year:2011

BASIC MECHANICS REVIEW QUESTIONS.

1. Calculate the minimum limiting coefficient of friction between tyres and road in order that a car shall negotiate an unbanked curve of 120 m radius at 100 km/h.

2. Calculate the minimum radius of unbanked track which a motor cycle may traverse at 130 km/h without skidding outwards if the coefficient of sliding friction is 0.6.

3. A vehicle travels at 72 km/h round a track banked at 20 degrees to the horizontal. The coefficient of sliding friction between tyres and road is 0.5. Calculate the radius at which skidding would occur.

4. A race track is to be banked so that a 120 km/h a car can traverse a 180 m radius curve without side thrust on the tyres. Calculate the angle of banking required.

5. A car travels round a curve of 60 m radius which is banked at 10 degrees to the horizontal, the slope being away from the inside of the curve. If the coefficient of friction between tyres and road is 0.7 calculate the maximum speed at which the curve can be traversed without skidding

6. A vehicle traverses a banked track of radius 90 m and angle of banking 60 degrees. If its speed is 12 m/s, calculate the minimum coefficient of friction between tyres and track if the vehicle is not to slip down the track.

7. A road curve of 75 m radius is banked so that the resultant reaction for any vehicle is normal to the road surface at 72 km/h. Calculate the angle of banking and the value of the coefficient of friction if skidding outwards commences for a car travelling at 120 km/h

8. A car of mass 1 t has a track width of 1.5. The centre of gravity is 600 mm above road level. The car travels round a curve of 60 m radius at 72 km/h. If the track is banked at 30 degrees, find the total normal reaction on the outer wheels.

Basic Mechanics Question Paper

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