Home
Class 11
PHYSICS
A particle of mass m accelerating unifor...

A particle of mass m accelerating uniformly has velocity v at time `t_1` . What is work done in time t?

A

`1/2 (mv^2)/(t_1^2)t^2`

B

`1/2 (m/(t_1))^2t^2`

C

`(mv^2)/(t_1^2)t^2`

D

`(2mv^2)/(t_1^2)t^2`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise EXERCISE (Very short Answer Type Questions)|30 Videos
  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise EXERCISE (short Answer Type Questions-I)|10 Videos
  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise HIGHER ORDER THINKING SKILL (HOTS) QUESTIONS|38 Videos
  • WBCHSE QUESTION PAPER -2019

    CHHAYA PUBLICATION|Exercise SECTION - II ( GROUP -D)|10 Videos

Similar Questions

Explore conceptually related problems

A particle of mass m, moving with a constant acceleration , acquires a velocity v_0 in time t_0 . Initially the particle was at rest. Find the average power and the instaneous power of the applied force.

The initial velocity of a particle- is u and acceleration (f) is uniform. Final velocity and distance covered in the interval t are v and s respectively. Show that the velocity of the particle at half - distance is more than the velocity for half-time.

Displacement x in metre and time t in second are related as t=sqrt(x)+3 , for a particle of mass 1g moving in a straigh line. (ii) What is the work done in the first 6 s of motion ?

A particle of mass m at rest in acted upon by a force P for a time t. its kinetic energy after an interval t is

The initial velocity is u and acceleration (f) is uniform. Final velocity and distance covered in the interval t are v and s respectively. Show that the velocity of the particle at half-distance is more than the velocity for half -time.

A body of mass m , starting from rest , moves with constant acceleration . After a time T it attains a velocity V. Show that the work done by the body in time t=1/2 m (V^2)/(T^2)*t^2*

A particle moves in a straight line and its velocity v (in cm/s ) at time t (in second ) is 6t^(2) - 2t^(3) , find its acceleration at the end of 4 seconds.

A partiole is moving in a straight line such that its velocity at time t is proportional to t^(5) . Then its acceleration is proportional to

A particle crosses points A, B, C in a straight line at a constant acceleration. The particle travels from A to B in time t_(1) and B to C in time t_(2) . If AB = a , BC = b then prove that the acceleration of the particle is 2(bt_(1)-at_(2))//t_(1)t_(2)(t_(1)+t_(2)) .

CHHAYA PUBLICATION-WORK AND ENERGY-EXERCISE (Multiple Choice Questions)
  1. A mass M is lowered with the help of a string by a distance x at a c...

    Text Solution

    |

  2. Force acting on a particle is (2hati+3hatj) N. Work done by this forc...

    Text Solution

    |

  3. A particle of mass m accelerating uniformly has velocity v at time t1 ...

    Text Solution

    |

  4. A mass of 2kg falls from a height of 40 cm on a spring with a force c...

    Text Solution

    |

  5. A gardener pushes a lawn roller through a distance 20m. If he applie...

    Text Solution

    |

  6. Power required to raise a mass of 120 kg vertically upwards at a veloc...

    Text Solution

    |

  7. A machine, applying a constant power is driving an object along a stra...

    Text Solution

    |

  8. A windmill generates electrical energy. Suppose, the windmill converts...

    Text Solution

    |

  9. A particle moves with a velocity 5hati -3hatj+6hatkm//s under the infl...

    Text Solution

    |

  10. A quater horse power motor runs at a speed of 600 rpm. Assuming 40% ef...

    Text Solution

    |

  11. Energy of a body thrown upward is

    Text Solution

    |

  12. A particle is moving in a straight line such that its retardation is ...

    Text Solution

    |

  13. Starting from rest a car moves on a plane. The coefficient of friction...

    Text Solution

    |

  14. A particle falls from rest under the action of gravity . Variation of ...

    Text Solution

    |

  15. A long spring is stretched by 2 cm. its potential energy is U . If th...

    Text Solution

    |

  16. In which of the following cases the potential energy is defined

    Text Solution

    |

  17. A body of mass m thrown vertically upwards attains a maximum height h....

    Text Solution

    |

  18. For a moving particle (mass m, velocity v) having a momentum p, which...

    Text Solution

    |

  19. The potential energy of a system increases if work is done

    Text Solution

    |

  20. Two bodies of masses 4 kg and 5kg are moving with equal momentum. The...

    Text Solution

    |