Home
Class 12
PHYSICS
When a constant force acts on a mass m w...

When a constant force acts on a mass m which is at rest initially, the velocity acquired in a given direction is proportional to

A

`sqrt m`

B

`1/sqrt m`

C

m

D

1/m

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • KINETICS THEORY OF GASES

    MBD PUBLICATION|Exercise QUESTION BANK|264 Videos
  • MAGNETISM AND MATTER

    MBD PUBLICATION|Exercise QUESTION BANK|191 Videos

Similar Questions

Explore conceptually related problems

A body starts from rest and acquires a velocity V in time T. The work done on the body in time t will be proportional to

A shell of mass 20 kg moving horizontal at 4 m/s explodes into two parts. The part of mass 12 kg moves in the same direction as the shell with a velocity of 25 m/s. Find magnitude and direction of the other part.

A car accelerates from rest at constant rate of 2m/s^2 for some time. Then it retards at constant rate of 4m/s^2 and comes to rest . If the total time for which it remains in motion is 3 seconds, what is the distance travelled ?

A flywheel in the from of disc is initially at rest . when a constant torque acts on it for one minute , it attains a speed of 600 rpm. calculate the torque if the mass and radius of the disc are 10 kg and 0.4 m respectively.

Can the direction of the velocity of a body change when it's acceleration is constant.

The Kinetic energy acquired by a mass m after travelling a fixed distance from rest under the action of a constant force is directy proportional to

MBD PUBLICATION-LINEAR MOMENTUM FORCE-QUESTION BANK
  1. Two Indenical bodies are allowed to fall from different heights h1 and...

    Text Solution

    |

  2. A 20 kg monkey slides down a vertical rope with a constant acceleratio...

    Text Solution

    |

  3. When a constant force acts on a mass m which is at rest initially, the...

    Text Solution

    |

  4. A body of mass 5kg is acted on by a net force F which varies as shown ...

    Text Solution

    |

  5. The kinetic energy of the body is increased by 300%. The percentage in...

    Text Solution

    |

  6. A bomb of mass 9 kg explodes into two pieces of mass 3 kg and 6 kg. Th...

    Text Solution

    |

  7. The momentum of a body decreases by 20%, the percentage decrease in Ki...

    Text Solution

    |

  8. If the momentum of a body increases by 20%, the percentage increases i...

    Text Solution

    |

  9. A force is removed after applying on a body for a 5 sec and the body c...

    Text Solution

    |

  10. A body of mass 10 kg is moving with a velocity of 100 m/s. Find the ma...

    Text Solution

    |

  11. A body having a mass of 100 gm falls freely under the action of gravit...

    Text Solution

    |

  12. A 20 gram bullet moving at 300 m/s stops after penetrating 3 cm of bon...

    Text Solution

    |

  13. A motor car of mass 200 kg is moving with a velocity of 72 km/hr. By t...

    Text Solution

    |

  14. A motor car running at the rate of 7 m/s can be stopped by it's brakes...

    Text Solution

    |

  15. A force of 16 N acts on a ball of mass 80 gm for one micro-second. Cal...

    Text Solution

    |

  16. A cricket ball of mass 0.2 kg moving with a velocity of 20 m/s is brou...

    Text Solution

    |

  17. A rubber ball of mass 0.05 kg falls from a height of 1 m and rebounds ...

    Text Solution

    |

  18. A lift has a mass of 6000 kg. The upward tension of the supporting cab...

    Text Solution

    |

  19. A gun weighing 8 kg flies a bullet 40 gm wih a velocity 400 m/s. With ...

    Text Solution

    |

  20. A hunter has a machine gun that can fire 50 gm bullets with velocity 9...

    Text Solution

    |