Home
Class 11
PHYSICS
Keeping the banking angle same, to incre...

Keeping the banking angle same, to increase the maximum speed with which a vehicle can travel on the curved road by 10%, the radius of curvature of the road has to be changed from 20 m to

A

`86.4"km h"^(-1)`

B

`43.2"km h"^(-1)`

C

`21.6"km h"^(-1)`

D

`30.4"km h"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
`tantheta=(v^(2))/(gr)rArr(3)/(5)=(v^(2))/(10xx6)`
`v=6ms^(-1)=21.6kmh^(-1)`
Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    DC PANDEY ENGLISH|Exercise Match the columns|3 Videos

  • CIRCULAR MOTION

    DC PANDEY ENGLISH|Exercise Medical entrances s gallery|19 Videos

  • CIRCULAR MOTION

    DC PANDEY ENGLISH|Exercise Check point|45 Videos

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY ENGLISH|Exercise Level 2 Subjective|21 Videos

  • COMMUNICATION SYSTEM

    DC PANDEY ENGLISH|Exercise Only One Option is Correct|27 Videos

Similar Questions

Explore conceptually related problems

Obtain an expression for the maximum speed with which a car can turn safely on a banked road.

Keeping the angle of banking, if the radius of curvature is made four times, the percentage increase in the maximum speed with which a vehicle can travel on a circular road is

The maximum speed with which a vehicle can take safely circular turn on a horizontal flat rough road is (where symbols have their usual meanings)

Select the correct equation for optimum speed of a car on a banked road of angle of banking theta and radius of curvature r.

What is the maximum speed with which a cylist can turn around curved path of radius 10.0 m, if the coefficient of friction between the tyre and the road is 0.5 ? If the cyclist wants to avoid overturning by what angle the cyclist must lean from the vertical ?

A bus of mass 1000 kg has an engine which produces a constant power of 50 kW. If the resistance to motion, assumed constant is 1000 N. The maximum speed at which the bus can travel on level road and the acceleration when it is travelling at 25 m/s, will respectively be -

A vehicle is moving on an over bridge which is in the form of a circular arc of radius 10 m. What is the maximum speed with which a vehicle can move through the topmost point on the bridge without losing contact with the bridge ? (g = 10 m//s^(2))

A railway train is travelling on a curve of 750 m radius at the rate of 30 km/h, through what angle has it turned in 10 seconds ?

Find the maximum speed with which a car can turn on a bend without skidding, if radius of bend is 20 m and coefficient of friction between the road and the tyres is 0*4

Find the maximum speed with which a car can turn on a bend without skidding, if radius of bend is 20 m and coefficient of friction between the road and the tyres is 0.4.

DC PANDEY ENGLISH-CIRCULAR MOTION-Taking it together
  1. A body of mass 1 kg is moving in a vertical circular path of radius 1 ...

    Text Solution

    |

  2. A particle is moving along a circular path of radius 5 m with a unifo...

    Text Solution

    |

  3. Keeping the banking angle same, to increase the maximum speed with whi...

    Text Solution

    |

  4. A motor cyclist moving with a velosity of 72 km h^(-1) on a flat road ...

    Text Solution

    |

  5. A train has to negotiate a curve of radius 2000 m. By how much should ...

    Text Solution

    |

  6. A car wheel is rotated to uniform angular acceleration about its axis....

    Text Solution

    |

  7. A pendulum bob on a 2 m string is displaced 60^(@) from the vertical a...

    Text Solution

    |

  8. The bob of a 0.2 m pendulum describs an arc of circle in a vertical pl...

    Text Solution

    |

  9. In a typical projectile motion, tangential acceleration at the topmost...

    Text Solution

    |

  10. A car runs around a curve of radius 10m at a constant speed of 10ms^(-...

    Text Solution

    |

  11. A coin placed on a rotating turntable just slips if it is placed at a ...

    Text Solution

    |

  12. As shown in the figure, a disc of mass m is rolling without slipping a...

    Text Solution

    |

  13. If the linear momentum of a body is increased by 50%, then the kinetic...

    Text Solution

    |

  14. An automobile enters a turn whose radius is R. The road is banked at a...

    Text Solution

    |

  15. A mass is attached to the end of a string of length l which is tied to...

    Text Solution

    |

  16. A stone is rotated in a vertical circle. Speed at bottommost point is ...

    Text Solution

    |

  17. The string of a pendulum is horizontal. The mass of the bob is m. Now ...

    Text Solution

    |

  18. A body is moving in a vertical circle of radius r such that the string...

    Text Solution

    |

  19. A small ball is pushed from a height h along a smooth hemispherical bo...

    Text Solution

    |

  20. A 50 kg girl is swinging on a swing from rest. Then, the power deliver...

    Text Solution

    |