Home
Class 12
PHYSICS
A cyclist with combined mass 80 kg goin...

A cyclist with combined mass 80 kg going around a curved road with a uniform speed `20 m//s`. He has to bend inward by an angle ` theta = tan^(-1)`(0.50) with the verticle , then the force of friction between road surface and tyres will be
`(g=10m//s^(2)`

A

300 N

B

400 N

C

800 N

D

250 N

Text Solution

Verified by Experts

The correct Answer is:
B
`(mv^(2))/(r)=(mrg tan theta )/(r)`
Promotional Banner

Topper's Solved these Questions

  • ATOMS, MOLECULES AND NUCLEI

    NIKITA PUBLICATION|Exercise MCQs|443 Videos

  • COMMUNICATION SYSTEMS

    NIKITA PUBLICATION|Exercise Multiple Choice Questions (Examples for Practice)|8 Videos

Similar Questions

Explore conceptually related problems

A cyclist moves around a circular path of radius 40sqrt3 m with a speed of 20 m//s . He must lean inwards at an angle theta with the vertical such that tan theta is equal to

A curved road is banked for speed v_(0) . When a car moves along the road with a constant speed v , the force the friction between the road and the tyres is F. Which of the following statements(s) is (are) correct ?

A block of mass 8 kg is sliding on a surface inclined at an angle of 45^(@) with the horizontal. Calculate the acceleration of the block. The coefficient of friction between the block and surface is 0.6. (Take g=10m//s^(2) )

If a cyclist moving with a speed of 4.9 m//s on a level road can take a sharp circular turn of radius 4 m , then coefficient of friction between the cycle tyres and road is

Fing the maximum speed with which an automobile can round a curve of radius 8 m without slipping of the road is unbanked and he coefficient of friction between the orad an the tyres is 0.8 (g=10 m//^(2))

A car is moving on a circular road of diameter 50 m with a speed of 5 m/s. It is suddenly accelerated at a rate of 1 m//s^(2) . If the mass of he car is 500 kg, then the net force acting on the car is

A motor cyclist going round on unbanked circular race course has to lean inwards, making an angle 21^(@) 49 ' with the vertical , in order to keep his balance. If the curve is 1 km long , then the speed of the cyclist will be, ( tan 21^(@) 49 =0.4003' g=9.8 m//s ^(2) )

A block A of mass 2 kg rests on a horizontal surface. Another block B of mass 1 kg moving at a speed of m/s when at a distance of 16 cm from A. collides elastically with A. The coefficeint of friction between the horizontal surface and earth of the blocks is 0.2. Then (g = 10 m//s^(2))

What will be maximum speed of a car on a curved road of radius 30 m , If the coefficient of friction between the tyres and the road is 0.4? (g=9.8 m//s^(2))

NIKITA PUBLICATION-CIRCULAR MOTION-Multiple Choice Question
  1. A car is moving along the horizontal curved road . Then the normal ...

    Text Solution

    |

  2. Keeping the banking angle same , to increase the maximum speed with wh...

    Text Solution

    |

  3. A cyclist with combined mass 80 kg going around a curved road with a ...

    Text Solution

    |

  4. What will be maximum speed of a car on a curved road of radius 30 m , ...

    Text Solution

    |

  5. A cyclist on the ground goes round a ciruclar path of circumference 34...

    Text Solution

    |

  6. The slope of the smooth banked horizontal road is rho .If the radius o...

    Text Solution

    |

  7. A train has to negotiate a curve of radius 400 m .The speed of the tra...

    Text Solution

    |

  8. A mass m on a friction less table is attached to a hanging mass M by a...

    Text Solution

    |

  9. If a bodyof mass 1000 gm is tied to free end of string of length 100 c...

    Text Solution

    |

  10. A coin of 4 g mass is placed at a distance of 2 cm from the axis of ro...

    Text Solution

    |

  11. What will be the maximum speed of a car when it safely driven along a ...

    Text Solution

    |

  12. On a railway track of radius of curvature 1600 m. If the distance betw...

    Text Solution

    |

  13. A motor cyclist going round on unbanked circular race course has to le...

    Text Solution

    |

  14. A motor cyclist rides along a horizontal circle on the certicle cylind...

    Text Solution

    |

  15. A cyclist turns around a curve at 50 km//h ., If it rounds the curve ...

    Text Solution

    |

  16. The maximum speed of a car which can be safely driven along a curve of...

    Text Solution

    |

  17. At a curved path of a road, the road bed is raised the curved path, th...

    Text Solution

    |

  18. A coins kept on a horizontal rotating disc has its centre at a distanc...

    Text Solution

    |

  19. A vehicle moves on a horizontal curved road of radius of curvature 50 ...

    Text Solution

    |

  20. The height of the centre of gravity of the truck above the ground is 1...

    Text Solution

    |