Home
Class 11
PHYSICS
A stone is dropped from the top of a tow...

A stone is dropped from the top of a tower of height 45 m. One second later another stone is thrown down from the town of the same tower. Both stones reach the ground at the same time. If `(g= 10 m/s^2), magnitude of the initial velocity of the sound stone is

A

16 m/s

B

25 m/s

C

12.5 m/s

D

8 m/s

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MEASUREMENTS

    TARGET PUBLICATION|Exercise EVALUATION TEST|17 Videos

  • OPTICS

    TARGET PUBLICATION|Exercise EXERCISE|447 Videos

Similar Questions

Explore conceptually related problems

A body is released from the top of a tower of height 50 m. Find the velocity with which the body hits the ground. (g=9.8 m/s^2)

A stone is dropped from a height equal to nR , where R is the radius of the earth, from the surface of the earth. The velocity of the stone on reaching the surface of the earth is

A stone is dropped into a lake from a tower 500 metre high. The sound of the splash will be heard by the man approximately after

A stone is released from the top of a tower 90m high. At the same instant a second stone is projected vertically upwards from the ground with a velocity of 30 m//s . When and where will the two stones meet?

From the top of a tower of height 'H', body is thrown vertically upwards with a speed 'u'. Time taken by the body to reach the ground is '3' times the time taken by it to reach the highest point in its path. Then, the speed u is

A stone is projected from the ground with velocity 50 m/s at an angle of 30^@ . It crosses a wall after 3 s. How far beyond the wall the stone will strike the ground? [g=10 m/s^2]

The angle of elevation of top of the tower from a point P on the ground is 30^(@) . If the points is 45 m away from the foot of the tower , then the height of the tower is

A ball is dropped from a highly raised platform at t=0 starting from rest. After 6 second another ball is thrown downwards from the same platform with a speed v. The two balls meet at t=18 s. What is the value of v? (Take g=10 m/s^2 )

An iron ball of mass 3 kg is released from a height of 125 m and falls freely to the ground. Assuming that the value of g is 10 m//s^(2) , calculate velocity of the ball on reaching the ground

A stone is shot straight upward with a speed of 20 m/s from a tower 200 m high. The speed with which it strikes the ground is (g=10 m/s^2)

TARGET PUBLICATION-Motion in a plane-Exercise
  1. A body starting from rest at t=0 moves along a straight line with a co...

    Text Solution

    |

  2. Two particles are simultaneously projected in the horizontal direction...

    Text Solution

    |

  3. A stone is dropped from the top of a tower of height 45 m. One second ...

    Text Solution

    |

  4. A particle of unit mass undergoes one-dimensional motion such that its...

    Text Solution

    |

  5. Two balls are thrown horizontally in opposite directions from the same...

    Text Solution

    |

  6. A projectile has some range R when the maximum height attained by it i...

    Text Solution

    |

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

    Text Solution

    |

  8. The ceiling of a tunnel is 5 m high. What is the maximum horizontal di...

    Text Solution

    |

  9. A small particle of mass mis projected at an angle theta with the x-ax...

    Text Solution

    |

  10. A projectile is fired from the surface of the earth with a velocity of...

    Text Solution

    |

  11. From a tower of height H, a particle is thrown vertically upwards with...

    Text Solution

    |

  12. The relation between linear speed v, angular speed omega and angular a...

    Text Solution

    |

  13. If K.E of the particle of mass m performing U.C.M in a circle of radi...

    Text Solution

    |

  14. A particle at rest is moved along a straight line by a machine giving ...

    Text Solution

    |

  15. A coin is placed on a rotating tur table rolated with angular speed om...

    Text Solution

    |

  16. A particle has initial velocity 4 hat i + 3 hat j and an accelaration ...

    Text Solution

    |

  17. A boat crosses a lake and returns in time T0, at a speed V. On a rough...

    Text Solution

    |

  18. A bullet is fired from surface of earth with a velocity of u m/s at an...

    Text Solution

    |

  19. A man throws balls with same speed vertically upwards one after the ot...

    Text Solution

    |

  20. A body is projected with velocity v1from the point P as shown in the f...

    Text Solution

    |