Home
Class 11
PHYSICS
A particle (A) is dropped from a height ...

A particle (A) is dropped from a height and another particle (B) is thrown in horizontal direction with speed of 5 m/s from the same height. The correct statement is

A

ball P reaches the ground first

B

ball Q reaches the ground first

C

Both reach the ground at the same time

D

the respective masses of the two balls will decide the time

Text Solution

Verified by Experts

The correct Answer is:
C
Verical component of velocities of both the balls are same and equal to zero.
So, `t = sqrt((2h)/(g))`.
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A PLANE

    DC PANDEY ENGLISH|Exercise Check point 3.6|20 Videos

  • MOTION IN A PLANE

    DC PANDEY ENGLISH|Exercise Check point 3.7|15 Videos

  • MOTION IN A PLANE

    DC PANDEY ENGLISH|Exercise Check point 3.4|15 Videos

  • MOTION

    DC PANDEY ENGLISH|Exercise Medical entrances gallery|19 Videos

  • PROJECTILE MOTION

    DC PANDEY ENGLISH|Exercise Level - 2 Subjective|10 Videos

Similar Questions

Explore conceptually related problems

A particle (A) is dropped from a height and another particles (B) is thrown into horizontal direction with speed of 5m/s sec from the same height. The correct statement is

A particle is dropped from a height h. Another particle which is initially at a horizontal distance d from the first is simultaneously projected with a horizontal velocity u and the two particles just collide on the ground. Then

From a 10 m high building a ston 'A' is dropped, and simultaneously another identical stone 'B' is thrown horizontally with an initial speed of 5ms^(-1) . Which one of the following statement is true?

Assertion : A body is dropped from height h and another body is thrown vertically upwards with a speed sqrt(gh). They meet at height h/ 2. Reason : The time taken by both the blocks in reaching the height h/2 is same.

A particle of mass m is dropped from a great height h above the hole in the earth dug along its diameter.

A stone of mass 500g is dropped from the top of a tower of 100m height. Simultaneously another stone of mass 1 kg is thrown horizontally with a speed of 10 m s^(-1) from same point. The height of the centre of mass of the above two stone system after 3 sec is ( g = 10 m s^(-2) )

A ball is dropped from the top of a building of height 80 m. At same instant another ball is thrown upwards with speed 50 m/s from the bottom of the building. The time at which balls will meet is

Assertion Particle-1 is dropped from a tower and particle-2 is projected horizontal from the same tower. Then both the particles reach the ground simultaneously. Reason Both are particles strike the ground with different speeds.

A particle A is projected verically upwards. Another indentical particle B is projected at an angle of 45^(@) . Both reach the same height. The ratio of the initial kinetic energy of A to that of B is -

DC PANDEY ENGLISH-MOTION IN A PLANE-Check point 3.5
  1. If a stone is thrown up with a velocity of 9.8 ms^(-1), then how much ...

    Text Solution

    |

  2. A stone falls freely rest. The distance covered by it in the last seco...

    Text Solution

    |

  3. A stone is thrown vertically upwards with an initial speed u from the ...

    Text Solution

    |

  4. A body is thrown vertically upwards from A. The top of a tower . It re...

    Text Solution

    |

  5. A body is projected upwards with a velocity u. It passes through a cer...

    Text Solution

    |

  6. A helicopter rises from rest on the ground vertically upwards with a c...

    Text Solution

    |

  7. A particle (A) is dropped from a height and another particle (B) is th...

    Text Solution

    |

  8. A particle is dropped from top of tower. During its motion it covers (...

    Text Solution

    |

  9. A ball dropped from the top of a tower covers a distance 7x in the las...

    Text Solution

    |

  10. A body falls from a height h = 200 m (at New Delhi). The ratio of dist...

    Text Solution

    |

  11. A stone is thrown vertically upwards. When stone is at a height half o...

    Text Solution

    |

  12. When a ball is thrown up vertically with velocity v0, it reaches a max...

    Text Solution

    |

  13. A man in a balloon rising vertically with acceleration 4.9m//s ^(2) ...

    Text Solution

    |

  14. A body freely falling from the rest has velocity v after it falls thro...

    Text Solution

    |

  15. Two balls are dropped from heights h and 2h respectively from the eart...

    Text Solution

    |

  16. An aeroplane is moving with a velocity u. It drops a packet from a hei...

    Text Solution

    |

  17. For a particle moving along a straight line, the displacement x depend...

    Text Solution

    |

  18. The acceleration of a particle is increasing linearly with time t as b...

    Text Solution

    |

  19. The acceleration a in ms^-2 of a particle is given by a=3t^2+2t+2, whe...

    Text Solution

    |

  20. A particle is moving such that s=t^(3)-6t^(2)+18t+9, where s is in met...

    Text Solution

    |