Home
Class 11
PHYSICS
A ball P is dropped vertically and anot...

A ball P is dropped vertically and another ball Q is thrown horizontally with the same velocities from the same height and at the same time. If air resistance is neglected, then

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|Exercise Check point 3.6|20 Videos

  • MOTION IN A PLANE

    DC PANDEY|Exercise Check point 3.7|15 Videos

  • MOTION IN A PLANE

    DC PANDEY|Exercise Check point 3.4|15 Videos

  • MOTION

    DC PANDEY|Exercise Medical entrances gallery|19 Videos

  • PROJECTILE MOTION

    DC PANDEY|Exercise Level - 2 Subjective|10 Videos

Similar Questions

Explore conceptually related problems

A body A is dropped vertically from the top of a tower. If another identical body B is thrown horizontally from the same point at the same instant, then

From the top of the tower, a ball A is dropped and another ball B is thrown horizontally at the same time. Which ball strikes the ground first ?

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 ball of mass (m) is thrown vertically up. Another ball of mass 2 m is thrown at an angle theta with the vertical. Both of them stay in air for the same period of time. What is the ratio of the height attained by two balls.

A ball of mass M is thrown vertically upwards. Another ball of mass 2M is thrown at an angle theta with the vertical. Both of them stay in air for the same period of time. The heights attained by the two are in the ratio

A ball is dropped freely while another is thrown vertically downward with an initial velocity v from the same point simultaneously. After t second they are separated by a distance of

A ball is thrown vertically upwards. Which of the following graph/graphs represent velocity time graph of the ball during its flight ( air resistance is neglected).

A: A body X is dropped from the top of a tower. At the same time, another body Y is thrown horizontally from the same position with a velocity u . Both bodies will reach the ground at the same time. R: Horizontal velocity has no effect on motion in the vertical direction.

A ball P is projected vertically up. Another similar ball Q is projected at ari angle 45^(@) . Both reach the same height during their motion. Then, at the starting point, ratio of kinetic energy of P and Q is?

DC PANDEY-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, moving vertically upwards, releases a packet when it is ...

    Text Solution

    |

  7. A ball P is dropped vertically and another ball Q is thrown horizont...

    Text Solution

    |

  8. A particle is dropped under gravity from rest from a height h(g = 9.8 ...

    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 an accelration fo 4.9 ms^(-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

    |