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What should be the coefficient of fricti...

What should be the coefficient of friction between the tyres and the road, when a car travelling at `60 km h^(-1)` makes a level turn of radius `40 m` ?

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The correct Answer is:
0.71
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A car moves at speed of 36 km hr^-1 on a level road. The coefficient of friction between the tyres and the road is 0.8 . The car negotiates a curve of radius R. IF g=10 ms^-2 , then the car will skid (or slip) while negotiating the curve if the value R is

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SL ARORA-ROTATIONAL MOTION-Problem for self practice
  1. A ball of mass 100 g is suspended by a string 40 cm long. Keeping the ...

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  2. Find the maximum speed at which a car can take turn round a curve of 3...

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  3. What should be the coefficient of friction between the tyres and the r...

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  4. The mass of a bicycle rider along with the bicycle is 100 kg. he wants...

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  5. A cyclist riding at a speed of 14sqrt(3) ms^(-1) takes a turn around a...

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  6. A cyclist speeding at 6ms^(-1) in a circle of 18 m radius makes an ang...

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  7. A motor cyclist goes round a circular race course of diameter 320 m at...

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  8. An aeroplane travelling at a speed of 500 km h^(-1) tilts at an angle ...

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  9. For traffic moving at 60 kmh^(-1), if the radius of the curve is 0.1 k...

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  10. A railway carriage has its CG at a height of 1 m above the rails , whi...

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  11. A curve in a road forms an arc of radius 800 m. If the road is 19.6 m ...

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  12. A trains has to negotiate a curve of radius 400 m. By how much should ...

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  13. The radius of curvature of a railway track at a place where the train ...

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  14. The CG of a taxi is 1.5 m above the ground and the distance between it...

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  15. A train is moving with a speed of 72 kmh^(-1) on a curved railway line...

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  16. A 2000 kg car has to go over a turn whose radius is 750 m and the abgl...

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  17. A body weighing 0.5 kg tied to a string is projected with a velocity o...

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  18. A stone is tied to a weightless string and revolved in a vertical circ...

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  19. A bucket containing 4 kg of water , is tied to a rope of length 2.5 m ...

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  20. A stone of mass 0.3 kg is tied to one end of a string 0.8 m long and r...

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