Home
Class 12
PHYSICS
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` ?

A

0.5

B

0.66

C

0.71

D

0.8

Text Solution

Verified by Experts

The correct Answer is:
C
Coefficient of friction between the types and the road
`mu=(v^2)/(rg)=(60xx5//18)^2/(40xx9.8)=0.71`
Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise EXERCISE 2 (Miscellaneous Problems)|25 Videos

  • CIRCULAR MOTION

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|21 Videos

  • CIRCULAR MOTION

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|21 Videos

  • ATOMS, MOLECULES AND NUCLEI

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|30 Videos

  • COMMUNICATION SYSTEM

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHC CET Corner|6 Videos

Similar Questions

Explore conceptually related problems

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

A car goes on a circular horizontal road of radius 100 m. What should be the minimum coefficient of friction between the tyres and the road so that it completes the circle with velocity 10 m/s without slipping ? (Take g=10m//s^(2) )

The coefficient of friction between the tyres and the road is 0.1. The maximum speed with which a cyclist can take a circular turn of radius 3 m without skidding is ("Take g"=10ms^(-2))

(a) Find the maximum speed at which a car turn round a curve of 30 m radius on a level road if the coefficient of friction between the tyres and the road is 0.4 [ acc. Due to gravity = 10 m // s^(2) ] (b) For traffic moving at 60 km/hr , if the radius of the curve is 0.1 km , what is the correct angle of banking of the road ? ( g = 10 m // s^(2))

A van is moving with a speed of 108 km / hr on level road where the coefficient of fraction between the tyres and the road is 0.5 for the safe driving of the van , the minimum radius of curvature of the road will be ( g=10 m//s^(2) )

A car is travelling along a curved road of radius r. If the coefficient of friction between the tyres and the road is mu the car will skid if its speed exceeds .

A cyclist speeding at 18 km// h on a level road takes a sharp circular turn of radius 3 m without reducing the speed . The coefficient of static friction between the tyres and the road is 0.1 Will the cyclist slip while taking the turn ?

The coefficient of friction between the tyres and the road is 0.25. The maximum speed with which a car can be driven round a curve of radius 40 m without skidding is (assume g = 10 ms^(-2) )

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-CIRCULAR MOTION-EXERCISE 1
  1. A stone is attached to one end of a string and rotated in a vertical ...

    Text Solution

    |

  2. A cane filled with water is revolved in a vertical circle of radius 4 ...

    Text Solution

    |

  3. A small coin is kept at the rim of a horizontal circular disc which is...

    Text Solution

    |

  4. A partical is moving along a circular path of radius 5m and with unifo...

    Text Solution

    |

  5. Two particles of masses in the ratio 3:5 are moving in circular paths ...

    Text Solution

    |

  6. A cosmonaut is orbiting the earth in a spacecraft at an altitude h =6...

    Text Solution

    |

  7. A coin placed on a rotating turn table just slips if it is placed at a...

    Text Solution

    |

  8. A car of mass 1000 kg moves on a circular track of radius 20 . If the ...

    Text Solution

    |

  9. The coefficient of friction between the tyres and the road is 0.25. T...

    Text Solution

    |

  10. A body moves along a circular path of radius 10m and the coefficient ...

    Text Solution

    |

  11. body is just being revolved in a vertical circle of radius R with a ...

    Text Solution

    |

  12. A railway carriager has its centre pf gravity at a height of 0.75m ab...

    Text Solution

    |

  13. A cyclist is moving in a circular track of radius 80 m with a velocity...

    Text Solution

    |

  14. A body of mass 1 kg is rotating in a verticle circle of radius 1 m .Wh...

    Text Solution

    |

  15. A stone of mass 1 kg is tied to a string 2m long and it's rotated at c...

    Text Solution

    |

  16. In a loop ,a body starts at a height h =2R. The minimum speed with wh...

    Text Solution

    |

  17. A bucket tied at the end of a 1.6m long string is whirled in a verticl...

    Text Solution

    |

  18. A mass m is attached to the end of a rod of length l. The mass goes al...

    Text Solution

    |

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

    Text Solution

    |

  20. The maximum speed with which a car driven round a curve of radius 18 m...

    Text Solution

    |