Home
Class 12
PHYSICS
Assertion: Magnitude of the contact forc...

Assertion: Magnitude of the contact force is always greater than the magnitude of frictional force.
Reason: Contact force is the resultant of the friction force and normal reaction.

A

If both assertion `&` Reason are True `&` the Reason is a corrrect explanation of the Asserion.

B

If both Assertion `&` Reason are True but Reason is not correct explanation of the Assertion.

C

If Assertion is Trie but the Reason is False.

D

If both Assertion `&` Reason are false

Text Solution

Verified by Experts

The correct Answer is:
A

`F_(C)=sqrt(f^(2)+N^(2))`
Promotional Banner

Topper's Solved these Questions

  • NEWTONS LAWS OF MOTION

    ALLEN|Exercise EXERCISE-II|112 Videos
  • NEWTON'S LAWS OF MOTION & FRICTION

    ALLEN|Exercise EXERCISE (JA)|4 Videos
  • RACE

    ALLEN|Exercise Basic Maths (Wave Motion & Dopplers Effect) (Stationary waves & doppler effect, beats)|25 Videos

Similar Questions

Explore conceptually related problems

Determine the magnitude of frictional force and acceleration of the block in each of the following cases :

Explain why, frictional force is said to be a contact force.

If the resultant of the two forces has a magnitude smaller than the magnitude of larger force ,then two forces must be

How is friction a component of the contact force?

Are the force of action and reaction always equal in magnitude?

(A) : Friction forces does not depend on visible area of contact . (R) : Limiting friction force is dependent on normal reaction .

ALLEN-NEWTONS LAWS OF MOTION-EXERCISE-III
  1. Assertion: Frictional force is the component of contact force parallel...

    Text Solution

    |

  2. Assertion: Newton's first law can be derived from the second law. Re...

    Text Solution

    |

  3. These questions consists of two statements each printed as Assertion a...

    Text Solution

    |

  4. Assertion: Pseudo force is an imaginary force which is recongnised on...

    Text Solution

    |

  5. Assertion: A table cloth can be pulled from a table without dislodding...

    Text Solution

    |

  6. Assertion: Friction is a self-adjusting force. Reason: A block on th...

    Text Solution

    |

  7. Assertion: The apparent weight of a person standing in a lift which mo...

    Text Solution

    |

  8. Assertion: A body of weight 10N (W) is at rest on an inclined plane (m...

    Text Solution

    |

  9. Assertion: When a force vecF attempts to slide a body along a surface,...

    Text Solution

    |

  10. Assertion: Mass is a property of one object alone, whereas weight resu...

    Text Solution

    |

  11. Assertion: When brakes are applied on a wet road, a car is likely to s...

    Text Solution

    |

  12. Assertion : The force of tension on a body always act away from the bo...

    Text Solution

    |

  13. Assertion: It is difficult to move a heavy box by sliding whereas it b...

    Text Solution

    |

  14. Assertion: Every mutual intraction between two bodies always follow th...

    Text Solution

    |

  15. Assertion: Static slides down an inclined plane if the angle of fricti...

    Text Solution

    |

  16. Assertion: Magnitude of the contact force is always greater than the m...

    Text Solution

    |

  17. Assertion: When a person walks on a rough surface, the frictional forc...

    Text Solution

    |

  18. Assertion: Newton's second law of motion gives the measurement of forc...

    Text Solution

    |

  19. Assertion: Pulling a lawn roller is easier than pushing it. Reason:P...

    Text Solution

    |

  20. Assertion: A man who falls from aheight on a cement floor receive more...

    Text Solution

    |