Home
Class 12
PHYSICS
A body of mass 2kg is initially at rest....

A body of mass `2kg` is initially at rest.It starts moving unidirectionally under the influence of a source of constant power `P`.Its displacement in `4s` is `(1)/(3)alpha^(2)sqrt(Pm)`.The value of `alpha` will be

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • JEE MAINS 2022

    JEE MAINS PREVIOUS YEAR|Exercise PHYSICS (SECTION -B)|10 Videos

Similar Questions

Explore conceptually related problems

A body is moving undirectionally under the influence of a source of constatn power. It displacement in time t is proportional to (i) t^(1//2) (ii) t (iii) t^(3//2) (iv) t^(2)

A body undergoing a straight line motion is under the influence of source of constant power. How does its displacement very with time?

A body is moving unidirectionally under the influence of a source of constant power supplying energy. Which of the diagrams shown in figure. Correctly shows the displacement-time curve for its motion ?

A body of mass 2kg at rest is supplied constant power 1J/sec, the distance travelled by body after 6 sec is

A body of mass 2 kg is at rest. What should be the magnitude of force which will make the body move with a speed of 30 m/s at the end of 1 s?

A particle of mass 0.2 kg is moving in one dimension under a force that delivers constant power 0.5 W to the particle. If the initial speed (in ms^(-1) ) after 5s is.

A body lying initially at point (3,7) starts moving with a constant acceleration of 4 hati . Its position after 3s is given by the coordinates

A body of mass 2kg starts from rest and moves with uniform acceleration. It acquires a velocity 20ms^-1 in 4s . The power exerted on the body at 2s is

JEE MAINS PREVIOUS YEAR-JEE MAINS 2023 JAN ACTUAL PAPER-Question
  1. A uniform disc of mass 0.5kg and radius r is projected with velocity 1...

    Text Solution

    |

  2. A faulty thermometer reads 5^(@)C in meting ice and 95^(@)C in meting ...

    Text Solution

    |

  3. A body of mass 2kg is initially at rest.It starts moving unidirectiona...

    Text Solution

    |

  4. If the potential difference between B and D is zero,the value of x is ...

    Text Solution

    |

  5. A stone tied to 180cm long string at its end is making 28 revolutions ...

    Text Solution

    |

  6. In a Young's double slit experiment,the intensities at two points,for ...

    Text Solution

    |

  7. In an ac generator,a rectangular coil of 100 turns each having area 14...

    Text Solution

    |

  8. The velocity of a particle executing SHM varies with displacement ( x ...

    Text Solution

    |

  9. A radioactive nucleus decays by two different process.The half life of...

    Text Solution

    |

  10. .If 1000 droplets of water of surface tension 0.07N/m,having same radi...

    Text Solution

    |

  11. At a certain depth "d" below surface of earth,value of acceleration du...

    Text Solution

    |

  12. A rod with circular cross-section area 2cm^(2) and length 40cm is woun...

    Text Solution

    |

  13. Two polaroide A and B are placed in such a way that the pass -axis of ...

    Text Solution

    |

  14. Given below are two statements: One is labelled as Assertion A and the...

    Text Solution

    |

  15. 100 balls each of mass m moving with speed v simultaneously strike a w...

    Text Solution

    |

  16. The pressure of a gas changes linearly with volume from A to B as show...

    Text Solution

    |

  17. The correct relation between gamma=(c(p))/(c(v)) and temperature T is ...

    Text Solution

    |

  18. A free neutron decays to a proton but a free proton does not decay to ...

    Text Solution

    |

  19. The drift velocity of electrons for a conductor connected in an electr...

    Text Solution

    |

  20. Which of the following correctly represents the variation of electric ...

    Text Solution

    |