Home
Class 11
PHYSICS
An automobile moving with a speed of 10m...

An automobile moving with a speed of `10m//s` enters an unbanked curve of radius `r=50m`.If `g=10m//s`, the maximum valve of `mu` so as to safety negotiate the curve is `1//x`.Then `x=`

Text Solution

Verified by Experts

`mu N=(m v^(2))/r` and `N=m g`
Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    NARAYNA|Exercise LEVEL-VI|14 Videos

  • CIRCULAR MOTION

    NARAYNA|Exercise LEVEL-VI PASSAGE|3 Videos

  • CALORIMETRY

    NARAYNA|Exercise Level- II (H.W)|11 Videos

  • COLLISION

    NARAYNA|Exercise Level-II (H.W)|54 Videos

Similar Questions

Explore conceptually related problems

The acceleration of a train travelling with speed of 400m//s as it goes round a curve of radius 160 m , is

The maximum safe speed of a vehicle over a curved road of radius 150 m is 10 m//s . If the width of road is 7.5 m, the height of the outer edge will be

A car is moving with constant speed of 10m/s on a horizontal circular path of radius 10sqrt(3m) . A bob of mass m suspended through a light string from the roof of the car. What is the angle made by the string with the vertical if the bob is stationary with respect to the car? (g = 10 m/ s^(2) )

What will be the maximum speed of a car when it safely driven along a curved road of radius 100 m ? (mu=0.2)

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

If an automobile moves round a curve of radius 300 m at constant speed of 60 m//s , then the change of velocity round a curve of 60^(@) will be

A motorcyclist of mass m is to negotiate a curve of radius r with a speed v . The minimum value of the coefficient of friction so that this negotiation may take place safely, is

An unbanked curve has a radius of 60m. The maximum speed at which a car can make a turn if the coefficient of static friction is 0.75 , is

One train A 100m long is moving in a direction with a speed of 20m/s . Another train B 150m long is moving with a speed of 30m/s in the opposite direction.The train B crosses the train A in a time A) 5s B) 10s C) 18s D) None of these

NARAYNA-CIRCULAR MOTION-LEVEL II(H.W)
  1. An automobile moving with a speed of 10m//s enters an unbanked curve o...

    Text Solution

    |

  2. A ball of mass 0.2 kg is thrown vertically upwards by applying a force...

    Text Solution

    |

  3. A body of mass 3 kg is moving alone a straight line with a velocity of...

    Text Solution

    |

  4. A rubber ball of mass 50 g falls from a height of 5m and rebounds to a...

    Text Solution

    |

  5. A stream of water flowing horizontally with a speed of 15 ms^(-1) push...

    Text Solution

    |

  6. What is the magnitude of the total force on a driver by the racing car...

    Text Solution

    |

  7. A base ball of mass 150 gm travelling at speed of 20 m//s is caught by...

    Text Solution

    |

  8. A dynamometer D is attached to two blocks of masses 6 kg and 4 kg.Forc...

    Text Solution

    |

  9. A particle of mass m moving with velocity u makes an elastic one-dimen...

    Text Solution

    |

  10. Figure shows the position-time graph of a particle of mass 0.04kg. Sug...

    Text Solution

    |

  11. The elevator shown in fig. is descending with an acceleration of 2ms^(...

    Text Solution

    |

  12. A block of mass m is pulled by a uniform chain of mass m tied to it by...

    Text Solution

    |

  13. Two masses of 8 kg and 4 kg are connected by a string as shown in figu...

    Text Solution

    |

  14. Consider the system as shown in the figure. The pulley and the string ...

    Text Solution

    |

  15. Two masses of 1kg and 5kg are attached to the ends of a massless strin...

    Text Solution

    |

  16. A chain consisting of 5 links each of mass d 0.1 kg is lifted vertical...

    Text Solution

    |

  17. Three blocks of equal masses (each 3kg) are suspended by weightless st...

    Text Solution

    |

  18. Pulleys and strings are massless.The horizontal surface is smooth.What...

    Text Solution

    |

  19. When a train starting from rest is uniformly accelerating, a plumb bob...

    Text Solution

    |

  20. The pulleys and strings shown in the figure are smooth and of negligib...

    Text Solution

    |

  21. Two bodies of mass 4kg and 6kg are attached to the ends of a string pa...

    Text Solution

    |