Home
Class 11
PHYSICS
If retardation produced by air resistanc...

If retardation produced by air resistances to projectile is one-tenth of acceleration due to gravity, the time to reach maximum height approximately-

A

increase by 9%

B

decrease by 9%

C

increase by 11%

D

decrease by 11%

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SHM-WAVE,GRAVITATION,FLUID,HEAT

    MOTION|Exercise EXERCISE|109 Videos

Similar Questions

Explore conceptually related problems

Acceleration due to gravity is maximum at

Acceleration the due to gravity become [(g)/(2)] at a height equal to

The acceleration due to gravity _____ with an increases in height and depth.

What is the value of the acceleration due to gravity at a height equal to radius of earth?

Which of the following is an expression for acceleration due to gravity at a height h?

The value of acceleration due to gravity is maximum at poles and minimum at equator.why ?

What will be the instaneous acceleration of an object thrown upward, when it reaches maximum height?

" For a projectile the ratio of the square of the time of flight to its maximum height is "

The friction of the air causes a vertical retardation equal to 10% of the acceleration due to gravity. Take g=10 m//s^(2) the maximum height and time to reach the maximum height will be decreased by

A projectile attains a certain maximum height H1 when projected from earth. If it is projected at the same angle and with the same initial speed from the moon, where the acceleration due to gravity is one-sixth that on earth, the maximum height attended by the projectile is H_2 . THe ratio H_2//H_1 is:

MOTION-MECHANICS-EXERCISE
  1. A stone is thrown from a bridge at an angle of 30º down with the horiz...

    Text Solution

    |

  2. R is the range on a horizontal plane for a shot with the same velocity...

    Text Solution

    |

  3. If retardation produced by air resistances to projectile is one-tenth ...

    Text Solution

    |

  4. A particle starts from the origin of coordinates at time t = 0 and mov...

    Text Solution

    |

  5. Two particles are projected from the same point with the same speed at...

    Text Solution

    |

  6. A particle moves along the positive branch of the curve y =2x2where x ...

    Text Solution

    |

  7. A boy standing on a long railroad car throws a ball straight upwards. ...

    Text Solution

    |

  8. A block of mass 4 kg is kept over a rough horizontal surface. The coef...

    Text Solution

    |

  9. Mass of upper block and lower block kept over the table is 2 kg and 1 ...

    Text Solution

    |

  10. A block slides down an inclined surface of inclination 30^0 with the h...

    Text Solution

    |

  11. A body of mass 2 kg is lying on a rough inclined plane of inclination ...

    Text Solution

    |

  12. Figure shows two blocks in contact sliding down an inclined surface of...

    Text Solution

    |

  13. A box of mass 8 kg placed on a rough inclined plane of inclened theta...

    Text Solution

    |

  14. The rear side of a truck is open and a box of mass 20kg is placed on t...

    Text Solution

    |

  15. A uniform rope of length l lies on a table if the coefficient of frict...

    Text Solution

    |

  16. A particle is projected along the line of greatest slope up a rough pl...

    Text Solution

    |

  17. A body A of mass 1 kg rests on a smooth surface. Another body B of mas...

    Text Solution

    |

  18. A heavy uniform chain lies on a horizontal table-top. If the coefficie...

    Text Solution

    |

  19. A block rests on an inclined plane that makes an angle  with the hori...

    Text Solution

    |

  20. A force F accelerates a block of mass m on horizontal surface. The coe...

    Text Solution

    |