Home
Class 11
PHYSICS
A ball is thrown with a velocity of u ma...

A ball is thrown with a velocity of `u` making an angle `theta` with the horizontal. Its velocity vector normal to initial vector `(u)` after a time interval of

A

`(u sin theta)/(g)`

B

`(u)/(g cos theta)`

C

`(u)/(g sin theta)`

D

`(u cos theta)/(g)`

Text Solution

Verified by Experts

The correct Answer is:
c
`vev=(u cos theta)hati+(u sin theta)hatj`
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE

    GRB PUBLICATION|Exercise Comprehension type Queston|14 Videos

  • UNITS AND DIMENSIONS

    GRB PUBLICATION|Exercise Link Compression|6 Videos

Similar Questions

Explore conceptually related problems

For a projectile first with velocity u at an angle theta with the horizontal.

A projectile is fired with a velocity 'u' making an angle theta with the horizontal. Show that its trajectory is a parabola.

A body is thrown with a velocity of 9.8 m//s making an angle of 30^(@) with the horizontal. It will hit the ground after a time

A particle is projected with a velocity u making an angle theta with the horizontal. At any instant its velocity becomes v which is perpendicular to the initial velocity u. Then v is

A ball is thrown with velocity 8 ms^(-1) making an angle 60^(@) with the horizontal.Its velocity will be perpendicular to the direction of initial velocity of projection after a time of

A particle is projeced with a velocity u making an angle theta with the horizontal. The instantaneous power of the gravitational force

" A body is projected with velocity u making an angle 30^(0) with the horizontal.Its velocity when it is perpendicular to the initial velocity vector is "

A stone is thrown with a velocity v at an angle theta with the horizontal.Its speed when it makes an angle beta with the horizontal is

A particle is projected with a velocity u making an angle theta with the horizontal. The instantaneous power of the gravitational force

GRB PUBLICATION-MOTION IN TWO AND THREE DIMENSIONS-All Questions
  1. A man is walking due east at the rate of 2kmph.The rain appears to him...

    Text Solution

    |

  2. The velocity of water in a river is 2 kmph,while width is 400 m. A boa...

    Text Solution

    |

  3. A ball is thrown with a velocity of u making an angle theta with the h...

    Text Solution

    |

  4. Two projectiles A and B are thrown from the same point with velocities...

    Text Solution

    |

  5. A large number of bullets are fired in all directions with the same sp...

    Text Solution

    |

  6. An aeroplane is flying horizontally at a height of 980 m with velocity...

    Text Solution

    |

  7. A cyclist is riding with a speed of 27 km h^(-1). As he approaches a c...

    Text Solution

    |

  8. The length of minute hand in a pendu lum clock is 10cm, the speed of l...

    Text Solution

    |

  9. A particle projected from the level ground just clears in its ascent a...

    Text Solution

    |

  10. A body is projected obliquely from the ground such that its horizontal...

    Text Solution

    |

  11. The maximum height attained by a projectile is increased by 5%. Keepin...

    Text Solution

    |

  12. A particle is projected with speed u at angle theta to the horizontal....

    Text Solution

    |

  13. An insect trapped in a circular groove of radius 12 cm moves along the...

    Text Solution

    |

  14. The distance between two moving particles P and Q at any time is a.If ...

    Text Solution

    |

  15. Rain, pouring down at an angle alpha with the vertical has a speed of ...

    Text Solution

    |

  16. The velocity of a boat in still water is 10 m//s.If water flows in the...

    Text Solution

    |

  17. A boatman finds that he can save 6 s in crossing a river by the quicke...

    Text Solution

    |

  18. At a given instant of time the position vector of a particle moving in...

    Text Solution

    |

  19. If a projectile crosses two walls of equal height h symmetrically as s...

    Text Solution

    |

  20. A particle when fired at an angle theta=60^(@) along the direction of ...

    Text Solution

    |