Home
Class 12
PHYSICS
A particle is projected from the ground ...

A particle is projected from the ground with a kinetic energy E at an angle of `60^(@)` with the horizontal. Its kinetic energy at the highest point of its motion will be

A

`E//sqrt2`

B

`E//2`

C

`E//4`

D

`E//8`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2012

    WB JEE PREVIOUS YEAR PAPER|Exercise Subject: Physics|38 Videos
  • QUESTION PAPER 2011

    WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS|39 Videos
  • QUESTION PAPER 2013

    WB JEE PREVIOUS YEAR PAPER|Exercise Category-III|5 Videos

Similar Questions

Explore conceptually related problems

A particle is projected at 60^(@) to the horizontal with a kinetic energy K. The kinetic energy at the highest point is

A body is projected with a speed u m/s at an angle beta with the horizontal. The kinetic energy at the highest point is 3/4th of the initial kinetic energy. The value of beta is :

A stone is thrown from the ground with a velocity of 14 m *s^(-1) , making an angle 60^@ with the horizontal. (ii) How far from the point of projection will it touch the ground ?

A particle is moving with kinetic energy E. It's de Broglie wavelength is—

An object of mass m is projected at an angle 60^(@) (with horizontal axis) with a velocity v.Its kinetic energy at the peak of the trajectory is

A particle of mass m has momentum p. What is its kinetic energy ?

How will the kinetic energy of the body change if its momentum in doubled ?

A particle is projected at an angle theta_0 = 60^@ with horizontal, after sqrt3 seconds the angle of velocity vector with the horizontal is reduce to half of its initial value, find the speed of projection ( g = 10 m//sec^2 ).

WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2012-Subject: Physics
  1. If the velocity of light in vacuum is 3xx10^(8)ms^(-1), the time taken...

    Text Solution

    |

  2. A charge +q is placed at the origin of X-Y axes as shown in the figure...

    Text Solution

    |

  3. What current will flow through the 2 KOmega resistor in the circuit sh...

    Text Solution

    |

  4. In a region, the intensity of an electric field is given by vecE=2hati...

    Text Solution

    |

  5. The dimension of angular momentum is

    Text Solution

    |

  6. If vecA=vecB+vecC and vecA,vecB,vecC have scalar magnitudes of 5, 4, 3...

    Text Solution

    |

  7. A particle is travelling along a straight line OX. The distance x (in ...

    Text Solution

    |

  8. A particle is projected from the ground with a kinetic energy E at an ...

    Text Solution

    |

  9. A bullet on penetrating 30 cm into its target loses its velocity by 50...

    Text Solution

    |

  10. When a spring is stretched by 10 cm, the potential energy stored is E....

    Text Solution

    |

  11. Average distance of the Earth from the Sun is L(1). If one year of the...

    Text Solution

    |

  12. A spherical ball A of mass 4 kg, moving along a straight line strikes ...

    Text Solution

    |

  13. When a certain metal surface is illuminated with light of frequency v,...

    Text Solution

    |

  14. Three blocks of mass 4 kg, 2 kg, 1 kg respectively are in contact on a...

    Text Solution

    |

  15. Let L be the length and d be the diameter of cross section of a wire. ...

    Text Solution

    |

  16. An object placed in front of a concave mirror at a distance of x cm fr...

    Text Solution

    |

  17. 22320 cal of heat is supplied to 100 g of ice at 0^(@)C. If the latent...

    Text Solution

    |

  18. A progressive wave moving along x-axis is represented by y=Asin[(2pi)/...

    Text Solution

    |

  19. Two radioactive substances A and B have decay constants 5lamda and lam...

    Text Solution

    |

  20. A magnetic needle is placed in a uniform magnetic field and is aligned...

    Text Solution

    |