Home
Class 11
PHYSICS
Assertion: When the body is dropped or t...

Assertion: When the body is dropped or thrown horizontally from the same height, it would reach the ground at the same time.
Reason: Horizontal velocity has no effect on the vertical direction.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false

Text Solution

Verified by Experts

The correct Answer is:
A

Since, vertical component of velocity is same
Time of light `t = sqrt((2h)/g)`
Promotional Banner

Topper's Solved these Questions

  • MOTION IN TWO DIMENSION

    ERRORLESS|Exercise PAST YEARS QUESTIONS |22 Videos
  • MOTION IN ONE DIMENSION

    ERRORLESS|Exercise ASSERTION AND REASON|24 Videos
  • NEWTON'S LAWS OF MOTION

    ERRORLESS|Exercise ASSERTION & REASON |18 Videos

Similar Questions

Explore conceptually related problems

Assertion: When the body is dropped or thrown horizontally form the same height, it would reach the ground at the same time. Reason: Horizontal velocity has no effect on the vertical direction.

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.

STATEMENT-1: When a body is dropped or thrown horizontally form the same height, it reaches the ground at the same time. STATEMENT-2: They have same acceleration and same initial speed in vertical direction.

Assertion : A body droped from a given height and another body projected horizontal from the same height strike the ground simultaneously Reason : Because horizontal velocity has no effect in the vertical direction .

Assertion : A stone and a feather dropped from the same height do not reach the ground at the same time. Reason : Acceleration due to gravity is dependent on the mass of the object.

A body is thrown horizontally from the top of a tower. It reaches the ground after 4s at an angle 45^(@) to the ground. The velocity of projection is

5A ball is thrown horizontally from a height of 20 m. It hits the ground with a velocity three times its initial velocity. The initial velocity of ball is

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 body is projected horizontally from a height of 20 m . It reaches the ground at a horizontally distance of 40 m . The speed of practicle when it hits the ground is

A body, rpojected horizontally with a speed u from the top of a tower of height h , reaches the ground at a horizontally distance R from the tower. Another body, projected horizontally from the top of a tower of height 4h , reaches the ground at horizontal distance 2R from the tower. The initial speed of the second body is

ERRORLESS-MOTION IN TWO DIMENSION-ASSERTION & REASON
  1. Assertion : In projectile motion, the angle between the instantaneou...

    Text Solution

    |

  2. Assertion: Two particles of different mass, projected with same veloci...

    Text Solution

    |

  3. Assertion: The maximum horizontal range of projectile is proportional ...

    Text Solution

    |

  4. Assertion: A body of mass 1 kg is making 1 rps in a circle of radius 1...

    Text Solution

    |

  5. Assertion : A coin is placed on phonogram turn table. The motor is sta...

    Text Solution

    |

  6. Assertion:- The trajectory of projectile in XY plane is quadratic in x...

    Text Solution

    |

  7. Assertion : Two similar trains are moving along the equatorial line ...

    Text Solution

    |

  8. Assertion: When the body is dropped or thrown horizontally from the sa...

    Text Solution

    |

  9. Assertion: When the velocity of projection of a body is made n times, ...

    Text Solution

    |

  10. Assertion : Improper banking of roads causes wear and tear of tyres....

    Text Solution

    |

  11. Assertion: When range of a projectile is maximum , its angle of projec...

    Text Solution

    |

  12. Assertion : In order to hit a target, a man should point his rifle i...

    Text Solution

    |

  13. Assertion : When an automobile while going too fast around a curve o...

    Text Solution

    |

  14. STATEMENT-1: During a turn, the value of centripetal force should be l...

    Text Solution

    |

  15. Assertion : When a vehicle takes a turn on the road, it travels alon...

    Text Solution

    |

  16. Assertion : As the frictional force increases, the safe velocity lim...

    Text Solution

    |

  17. Assertion : If both the speed of a body and radius of its circular p...

    Text Solution

    |

  18. Assertion : In circular motion, the centripetal and centrifugal forc...

    Text Solution

    |

  19. Assertion : A safe turn by a cyclist should neither be fast nor shar...

    Text Solution

    |