Home
Class 9
PHYSICS
A constant force acts on object of mass ...

A constant force acts on object of mass 5 kg for a duration of 2s It increases the object's velocity from 3m/s to 7m/s Find the magnitude of the applied force. Now if the force were applied for a duration of 5s what would be the final velocity of object?

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 constant force of 15 N acts on a body of mass 5 kg. Find the acceleration produced.

Certain force acting on a 20 kg mass changes its velocity from 5ms ^-1 to 2ms^-1 . Calculate the work done by the force.

A force acting on a object of mass 500 gm changes its speed from 200 cm/s to 0.2 m/s. The change in momentum is

A bullet of mass 50 g is fired from a gun. If the bullet acquires a velocity of 100 m s^(1) in 0.1 second, what is the recoil force on the gun?

An object is dropped from a height of 120 m. The acceleration of the object is 10m/s downwards. Find the distance travelled by the object after 2s. What is the final velocity of the object after 3s?

An object is dropped from a height of 120 m. The acceleration of the object is 10m/s downwards. Find the distance travelled by the object after 3s. What is the final velocity of the object after 3s?

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. A force of 5N gives a mass m(1), an acceleration of 10m//s^(2), and a ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  4. A rifle of mass 3 kg fires a bullet of mass 0.03 kg. The bullet leaves...

    Text Solution

    |

  5. A rifle of mass 3 kg fires a bullet of mass 0.03 kg. The bullet leaves...

    Text Solution

    |

  6. A bullet of mass 10g is fired from a rifle. The bullet takes 0.003 sec...

    Text Solution

    |

  7. Two bodies A and B of mass 5 kg and 10 kg contact with each other rest...

    Text Solution

    |

  8. Two bodies A and B of mass 5 kg and 10 kg contact with each other rest...

    Text Solution

    |

  9. A 40kg skatter moving at 4m/sec eastwards colloid head on with a 60kg ...

    Text Solution

    |

  10. Two bodeis A and B of masses 2.00 kg and 10.0 kg respectively moving i...

    Text Solution

    |

  11. Which of the following has more inertia : rubber ball and a stone of t...

    Text Solution

    |

  12. Which of the following has more inertia : a bicycle and a train ?

    Text Solution

    |

  13. Which of the following has more inertia : a five rupees coin and a one...

    Text Solution

    |

  14. In the following example, try to identify the number of times the velo...

    Text Solution

    |

  15. Explain why some of the leaves mayget detached from the tree if we vig...

    Text Solution

    |

  16. Why do you fall in the forward direction when a moving bus brakes to a...

    Text Solution

    |

  17. If action is always equal to reaction, explain how a horse can pull a ...

    Text Solution

    |

  18. Explain why is it difficult for a fire man to hold a hose, which eject...

    Text Solution

    |

  19. From a rifle of mass 4 kg, a bullet of mass 50g is fired with an initi...

    Text Solution

    |

  20. Two objects of masses 100 g and 200 g are moving along the same line a...

    Text Solution

    |