Home
Class 9
PHYSICS
If the normal force is doubled, the coef...

If the normal force is doubled, the coefficient of friction is

A

doubled

B

halved

C

not changed

D

tripled

Text Solution

Verified by Experts

The correct Answer is:
c
not changed
Promotional Banner

Topper's Solved these Questions

  • FRICTION

    CENGAGE PHYSICS|Exercise CONSOLIDATED EXERCISE. |1 Videos

  • FRICTION

    CENGAGE PHYSICS|Exercise CONSOLIDATED EXERCISE. (MULTIPAL-CHOICE QUESTION WITH ONE OR MORE THAN ONE CORRECT ANSWER)|3 Videos

  • FRICTION

    CENGAGE PHYSICS|Exercise OLYMPIAD AND NTSE LEVEL EXERCISES (Read the given statements and select the correct option.)|1 Videos

  • ELASTICITY

    CENGAGE PHYSICS|Exercise OLYMPIAD AND NTSE LEVEL EXERCISES|10 Videos

  • SOUND

    CENGAGE PHYSICS|Exercise OLYMPIAD AND NTSE LEVEL EXERCISE|10 Videos

Similar Questions

Explore conceptually related problems

A block is sliding on a rough horizontal surface. If the contact force on the block is sqrt2 times the frictional force, the coefficient of friction is

If the normal reaction is doubled, the frictional force is "_______"

The work done by the frictional force on a surface in a drawing a circle of radius r on the surface by a pencil of negligible mass with a normal pressing force N ( coefficient of friction )is :

A block of mass m slips on a rough horizontal table under the action of horiozontal force applied to it. The coefficient of friction between the block and the table is mu . The table does not move on the floor. Find the total frictional force aplied by the floor on the legs of the table. Do you need the friction coefficient between the table and the floor or the mass of the table ?

CENGAGE PHYSICS-FRICTION-MANDATORY EXERCISE. (EXERCISE SET I)
  1. Why is it easier to maintain the motion than to state it?

    Text Solution

    |

  2. In order to stop a car in shortest disatance on a horizontal road one ...

    Text Solution

    |

  3. If the normal force is doubled, the coefficient of friction is

    Text Solution

    |

  4. For a block kept on a table, the maximum force of static friction is F...

    Text Solution

    |

  5. A scooter generally slips on an oily road, because

    Text Solution

    |

  6. A body of mass 100 g is made just to slide on a rough surface by apply...

    Text Solution

    |

  7. A weight 'W' rests on a horizontal plane. What will be the least force...

    Text Solution

    |

  8. A horizontal force of 10 N is necessary to just hold a block stationar...

    Text Solution

    |

  9. A mass of 4 kg rests on a horizontal plane. When the plane is graduall...

    Text Solution

    |

  10. The ratio of mu(k) (kinetic friction) and mu(s) (state friction) is

    Text Solution

    |

  11. What is the relation between the normal reaction acting on a surface a...

    Text Solution

    |

  12. A block of mass 0.1 kg is held against a wall by applying a horizontal...

    Text Solution

    |

  13. The block of mass m is in contact with a moving cart as shown in the f...

    Text Solution

    |

  14. A block is placed on an inclined plane. The angle of inclination of th...

    Text Solution

    |

  15. Find the maximum value of force F such that the block shown in the fig...

    Text Solution

    |

  16. If F denotes the contact force, f denotes the frictional force exerted...

    Text Solution

    |

  17. In the figure, blocks A and B weigh 20 N and 100 N respectively. The b...

    Text Solution

    |

  18. A rocket is fired vertically from the earth with an acceleration of 2g...

    Text Solution

    |

  19. A horizontal force of 10N is necessary to just hold a block stationary...

    Text Solution

    |

  20. The acceleration of a moving body down a rough inclined plane is

    Text Solution

    |