Home
Class 11
PHYSICS
A body is thrown horizontally with a vel...

A body is thrown horizontally with a velocity `sqrt(2gh)` from the top of a tower of height h. It strikes the leverl ground through the foot of the tower at a distance x from the tower. The value of x is:-

A

h

B

`h//2`

C

`2h`

D

`2h//3`

Text Solution

Verified by Experts

The correct Answer is:
C

Time to fall `=sqrt((2xxh)/(g))`
Range = Horizontal velocity `xx`
`x=sqrt(2gh)xxsqrt((2h)/g)=2h`
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS

    ALLEN |Exercise EXERCISE-03|6 Videos
  • KINEMATICS

    ALLEN |Exercise Assertion-Reason|20 Videos
  • KINEMATICS

    ALLEN |Exercise EXERCISE-01|55 Videos
  • ERROR AND MEASUREMENT

    ALLEN |Exercise Part-2(Exercise-2)(B)|22 Videos
  • KINEMATICS (MOTION ALONG A STRAIGHT LINE AND MOTION IN A PLANE)

    ALLEN |Exercise BEGINNER S BOX-7|8 Videos

Similar Questions

Explore conceptually related problems

a body is thrown horizontally with a velocity sqrt(2gh) from the top of a tower of height h. It strikes the level gound through the foot of the tower at a distance x from the tower. The value of x is :-

A stone is thrown upwards with initial velocity 'u' from top of a tower and it reaches to ground with velocity '3u' then height of the tower is ......

A body is released from the top of a tower of height h. It takes t sec to reach the ground. Where will be the ball after time (t)/(2) sec?

A projectile is fired horizontally with a velocity of 98 ms^(-1) from the top of a hill 490 m high. Find (i) the time taken to reach the ground (ii) the distance of the target from the hill and (iii) the velocity with which the projectile hits the ground.

A body is projected vertically upwards with speed u from the top of a tower. It strikes at the ground with speed 3u. What is (a) height of tower and (b) time take by the body to reach at the ground?

The angle of elevation of the top of a tower from a point on the ground, which is 30m away from the foot of the tower, is 30^(@) . Find the height of the tower.

A particle is thrown vertically upward with a speed u from the top of a tower of height h from ground level, If after first impact with ground it just reaches to height h from ground the coeffecient of restitution for the collision is :-

The top of a clock tower is observed at engle of elevation of alpha^(@) and the feet of the tower at is the distance of d meters from the observer. Draw the diagram for this data.

A ball is thrown vertically upwards with a velocity of 20 ms^(-1) from the top of a multistorey building. The height of the point from where the ball is thrown is 25.0 m from the ground. (a) How high will the ball rise ? and (b) how long will it be before the ball hits the ground ? Take g = 10 ms^(-2) .

The angle of elevation of the top of a tower from a point O on the ground, which is 450 m away from the foot of the tower, is 30^(@) . Find the height of the tower.

ALLEN -KINEMATICS-EXERCISE-02
  1. A stone tied to the end of a string 0.4 m long is whirled in a horizon...

    Text Solution

    |

  2. A particle is projected from a point P (2m, 0m, 0m) with a velocity 10...

    Text Solution

    |

  3. A body is thrown horizontally with a velocity sqrt(2gh) from the top o...

    Text Solution

    |

  4. A particle A is projected with speed v(A) from a point making an angle...

    Text Solution

    |

  5. A body is projected at time t = 0 from a certain point on a planet's s...

    Text Solution

    |

  6. A particle moves in the xy plane and at time t is at the point (t^(2),...

    Text Solution

    |

  7. The figure shows the velocity time graph of the particle which moves a...

    Text Solution

    |

  8. An object may have :-

    Text Solution

    |

  9. A particle moves with constant speed v along a regular hexagon ABCDEF ...

    Text Solution

    |

  10. A particle moves along x-axis according to the law x=(t^(3)-3t^(2)-9t+...

    Text Solution

    |

  11. a particle moving along a straight line with uniform acceleration has ...

    Text Solution

    |

  12. A particle moves along the X-axis as x=u(t-2s)+a(t-2s)^2.

    Text Solution

    |

  13. The co-ordinate of the particle in x-y plane are given as x=2+2t+4t^(2...

    Text Solution

    |

  14. A particle leaves the origin with an lintial veloity vec u = (3 hat i...

    Text Solution

    |

  15. Pick the correct statements:

    Text Solution

    |

  16. Which of the following statements are true for a moving body?

    Text Solution

    |

  17. If the velocity of the particle is given by v=sqrt(x) and initially pa...

    Text Solution

    |

  18. The velocity- time graph of the particle moving along a straight line ...

    Text Solution

    |

  19. The fig. shows the v-t graph of a particle moving in straight line. Fi...

    Text Solution

    |

  20. In a projectile motion let t(OA)=t(1) and t(AB)=t(2).The horizontal di...

    Text Solution

    |