Home
Class 12
PHYSICS
The speed of a projectile at its maximum...

The speed of a projectile at its maximum height is half of its initial speed. The angle of projection is -

A

`15^(@)`

B

`30^(@)`

C

`45^(@)`

D

`60^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
`u cos theta=(u)/(2)` So `theta=60^(@)`
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A PALNE

    ALLEN|Exercise EXERCISE-2|170 Videos

  • MOTION IN A PALNE

    ALLEN|Exercise EXERCISE-3|40 Videos

  • MOTION IN A PALNE

    ALLEN|Exercise PHY|75 Videos

  • KINEMATICS-2D

    ALLEN|Exercise Exercise (O-2)|46 Videos

  • NEWTON'S LAWS OF MOTION & FRICTION

    ALLEN|Exercise EXERCISE (JA)|4 Videos

Similar Questions

Explore conceptually related problems

The speed of a projectile at its maximum height is sqrt3//2 times its initial speed. If the range of the projectile is n times the maximum height attained by it, n is equal to :

The speed of a projectile at its maximum height is sqrt3//2 times its initial speed. If the range of the projectile is n times the maximum height attained by it, n is equal to :

The speed of a projectile at its maximum height is sqrt3//2 times its initial speed. If the range of the projectile is n times the maximum height attained by it, n is equal to :

The kinetic energy of a projectile at the highest point is half of the initial kinetic energy. The angle of projection with the horizontal is

The potential energy of a projectile at its maximum height is equal to its kinetic energy there. Its range for velocity of projection u is

The velocity at the maximum height of a projectile is half of its initial velocity of projection. The angle of projection is

The total speed of a projectile at its greater height is sqrt(6/7) of its speed when it is at half of its greatest height. The angle of projection will be :-

The horizontal range of a projectile is 2 sqrt(3) times its maximum height. Find the angle of projection.

The speed at the maximum height of a projectile is sqrt(3)/(2) times of its initial speed 'u' of projection Its range on the horizontal plane:-

If a projectile having horizontal range of 24 m acquires a maximum height of 8 m, then its initial velocity and the angle of projection are

ALLEN-MOTION IN A PALNE-EXERCISE-1
  1. The maximum range of a gun on horizontal terrain is 1km. If g = 10 ms^...

    Text Solution

    |

  2. Two projectiles of same mass and with same velocity are thrown at an a...

    Text Solution

    |

  3. At the topmost point of a projectile trajectory, its velocity and acce...

    Text Solution

    |

  4. A large number of bullets are fired in all directions with same speed ...

    Text Solution

    |

  5. A projectole fired with initial velocity u at some angle theta has a r...

    Text Solution

    |

  6. Three particles A, B and C are projected from the same point with the ...

    Text Solution

    |

  7. Galileo writes that for angles of projection of a projectile at angles...

    Text Solution

    |

  8. A paricle stating from the (o,o) moves in a stainght line in the (x,y)...

    Text Solution

    |

  9. For a given initial speed, a projectile has the same range R for two a...

    Text Solution

    |

  10. A monket is sitting on the tree. A hunter fires a bullet to kill him. ...

    Text Solution

    |

  11. A particle of mass m is projectile with veoocity u making an angle of ...

    Text Solution

    |

  12. A ball is projected to attain the maximum range. If the height attaine...

    Text Solution

    |

  13. Two projectiles are fired from the same point with the same speed at ...

    Text Solution

    |

  14. A ball is projected vertically upwards with a certain initial speed. A...

    Text Solution

    |

  15. The speed of a projectile at its maximum height is half of its initial...

    Text Solution

    |

  16. A missile is fired for maximum range with an initial velocity of 20 m/...

    Text Solution

    |

  17. A projectile is fired at an angle of 45^(@) with the horizontal. Eleva...

    Text Solution

    |

  18. The horizontal range and the maximum height of a projectile are equal....

    Text Solution

    |

  19. The velocity of a projectile at the initial point A is (2hati+3hatj)m/...

    Text Solution

    |

  20. A projectile is projected in a plane from origin with initial velocity...

    Text Solution

    |