Home
Class 11
PHYSICS
A vehicle is travelling with uniform spe...

A vehicle is travelling with uniform speed along a concave road of radius of curvature `19.6m`. At lowest point of concave road is the normal reaction on the vehicle is three times its weight, the speed of vehicle is

A

`4.9 m/s`

B

`9.8 m/s`

C

`14.7 m/s`

D

`19.6 m/s`

Text Solution

Verified by Experts

The correct Answer is:
`(4)`
Normal reaction, `N = mg + mv^(2)/r, Given N = 3mg`
Promotional Banner

Topper's Solved these Questions

  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE -1 (H.W)|60 Videos

  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE -II (C.W)|75 Videos

  • WORK , ENERGY & POWER

    NARAYNA|Exercise (C.U.Q ) COLLISIONS|14 Videos

  • WAVES

    NARAYNA|Exercise Exercise-IV|56 Videos

  • WORK POWER AND ENERGY

    NARAYNA|Exercise Level-VI (Integer)|12 Videos

Similar Questions

Explore conceptually related problems

A vehicle is moving with uniform speed along horizontal, concave and convex surface roads. The surface on which, the normal reaction on the vehicle is maximum is

A vehicle is travelling along concave road then along convex road of same radius of curvatures at uniform speed. If the normal reactions on the vehicle as it crosses the lowest point of concave surface, highest point of concave surface, highest point of convex surface are 1.5 xx 10^(4) N, 3 xx 10^(3) N respectively, then the mass of vehicle is (g = 10 m//s^(-2)) .

A car is travelling along a flyover bridge which is a part of vertical circle of radius 10m . At the highest point of it the normal reaction on the car is half of it’s weight, the speed of car is

A car is moving with speed of 10 m//s in a concave road of radius 100 m .If the mass of the car is 700 kg, then the reaction on the car tyres when it is at the lowest position will be

A car of mass m moving over a concave bridge of radius r .Find the normal reaction acting on car when it is at lowest point the bridge

A vehicle is moving at a speed of 30 m/s on a circular road of radius 450 m. Its speed is increasing at a rate of 2 m/s^2 . The acceleration of particle at this instant is

A wheel of radius 2.1 m of a vehicle makes 75 revolutions in one minute. What is the speed of the vehicle ?

A particle moves along on a road with constant speed at all points as shown in figure. The normal reaction of the road on the particle is :

A body moves along an uneven horizontal road surface with constant speed at all points. The normal reaction of the road on the body is

NARAYNA-WORK , ENERGY & POWER -EXERCISE - 1 (C.W)
  1. A body of mass m is rotated in a vertical circle of radius R by means ...

    Text Solution

    |

  2. A body of mass m is rotated in a vertical circle with help of light st...

    Text Solution

    |

  3. A vehicle is travelling with uniform speed along a concave road of rad...

    Text Solution

    |

  4. A car is travelling along a flyover bridge which is a part of vertical...

    Text Solution

    |

  5. A very small particle rests on the top of a hemisphere of ra...

    Text Solution

    |

  6. Two steel balls A and B of mass 10 kg and 10 g rolls towards each othe...

    Text Solution

    |

  7. Two identical balls moving in opposite direction with speed 20 m/s and...

    Text Solution

    |

  8. A ball of mass 5 kg moving with speed 8 m/s collides head on with anot...

    Text Solution

    |

  9. A ball is dropped on a horizontal surface from height h. If it rebound...

    Text Solution

    |

  10. A ball of 4 kg mass moving with a speed of 3ms^(-1) has a head on elas...

    Text Solution

    |

  11. A ping-pong ball strikes a wall with a velocity of 10 ms^(-1). If the ...

    Text Solution

    |

  12. Two identical balls collide head on. The initial velocity of one is 0....

    Text Solution

    |

  13. A truck of mass 15 tons moving with 1 ms^(-1) collides with a stationa...

    Text Solution

    |

  14. In the above problem the total KE before collision is

    Text Solution

    |

  15. In the above problem loss of KE during collision is

    Text Solution

    |

  16. A bullet of mass 'x' moves with a velocity y, hits a wooden block of m...

    Text Solution

    |

  17. A railway truck of mass 16000 kg moving with a velocity of 5ms^(-1) st...

    Text Solution

    |

  18. A ball falls from a height of 10m on to a horizontal plane. If the coe...

    Text Solution

    |

  19. A ball is dropped from a height of 3m. If coefficient of restitution b...

    Text Solution

    |

  20. A glass sphere of mass 5mg, falls from a height of 3 meters on to a ho...

    Text Solution

    |