Home
Class 9
PHYSICS
A body of mass 'm' is moving with veloci...

A body of mass 'm' is moving with velocity u. When a force is apllied on it for time t its velocity increases to v. Write expressions for initial and final momentum. Also write SI unit of each.

Promotional Banner

Topper's Solved these Questions

  • FORCE AND LAWS OF MOTION

    MODERN PUBLICATION|Exercise EXAMPLE|123 Videos
  • FLOATING BODIES

    MODERN PUBLICATION|Exercise EXERCISE|149 Videos
  • GRAVITATION

    MODERN PUBLICATION|Exercise EXAMPLE|102 Videos

Similar Questions

Explore conceptually related problems

A body of mass m is moving in a circle of radius r with angular velocity omega . Find an expression for the centripetal force f acting on it using method of dimensional analysis.

A body of mass m moves in a circular path of radius r with a velocity v. Find the expression for the centripetal force F acting on the body by using method of dimensions.

A charge q of mass m moving with velocity v, at right angles to a uniform magnetic field B. Deduce the expression for the radius of the circular path it describes.

The kinetic energy of an object of mass 'm' moving with a velocity of 5ms^-1 is 25 J. What will be its kinetic energy when its velocity is doubled ? What will be its kinetic energy when its velocity is increased to three times.

A force of 20 N acting on a body of mass 10 kg is found to double its velocity 8S. Find its initial velocity

An object of mass 100 kg is accelerated uniformly from a velocity of 5 ms^(-1) to 8 ms^( -1) in 6s. Calculate the initial and final momentum of the object. Also find the force exerted on the object.

MODERN PUBLICATION-FORCE AND LAWS OF MOTION-EXAMPLE
  1. Cars are provided with seat belts. Give reason.

    Text Solution

    |

  2. A ball of mass 100 g moving with a velocity of 10ms^-1 is stopped by a...

    Text Solution

    |

  3. A body of mass 'm' is moving with velocity u. When a force is apllied ...

    Text Solution

    |

  4. A body of mass 'm' is moving with velocity u. When a force is apllied ...

    Text Solution

    |

  5. A body of mass 'm' is moving with velocity u. When a force is apllied ...

    Text Solution

    |

  6. Total momentum of two bodies remains unchanged before and after the co...

    Text Solution

    |

  7. A constant force acts on object of mass 5 kg for a duration of 2s It i...

    Text Solution

    |

  8. During arm wrestling, participants put arms on the table, and wrestle ...

    Text Solution

    |

  9. During arm wrestling, participants put arms on the table, and wrestle ...

    Text Solution

    |

  10. A body is left from the point A and allowed to ovig along the path ABC...

    Text Solution

    |

  11. The following is the distance-time table on an object in motion: wha...

    Text Solution

    |

  12. The following is the distance-time table on an object in motion: Wha...

    Text Solution

    |

  13. Two persons manage to push a motor car of mass 1,200 kg at uniform vel...

    Text Solution

    |

  14. A hammer of mass 500 g moving at 50ms ^(-1), strikes a nail. The nail...

    Text Solution

    |

  15. A motorcar of mass 1200 kg is moving along a straight line with a unif...

    Text Solution

    |

  16. Air is thrown on the sail of a stationary boat by an electric fan kept...

    Text Solution

    |

  17. Can a rocket propel itself in vacuum. Explain.

    Text Solution

    |

  18. What type of force is acting on the body whose motion is shown in the ...

    Text Solution

    |

  19. Rahul and his friends decided to prepare thernselves for long jump eve...

    Text Solution

    |

  20. Rahul and his friends decided to prepare thernselves for long jump eve...

    Text Solution

    |