Home
Class 12
PHYSICS
A projectile has initially the same hori...

A projectile has initially the same horizontal velocity as it would acquire if it had moved from rest with uniform acceleration of `3 m s^-2` for `0.5 min`. If the maximum height reached by it is `80 m`, then the angle of projection is `(g = 10 ms^-2)`.

A

`tan^(-1) (3)`

B

`tan^(-1) (3/2)`

C

`tan^(-1) (4/9)`

D

`sin^(-1)(4/9)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise LAW OF MOTION|128 Videos
  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise MOTION IN A STRAIGHT LINE|59 Videos
  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MAGNETISM AND MATTER )|52 Videos
  • ATOMS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|21 Videos

Similar Questions

Explore conceptually related problems

A body moves from rest with a uniform acceleration and travels 270 m in 3 s. Find the velocity of the body at 10 s after the start.

For a projectile, the ratio of maximum height reached to the square of flight time is (g = 10 ms^(-2))

A body starting from rest is moving with a uniform acceleration of 8m/s^(2) . Then the distance travelled by it in 5th second will be

A bus starting from rest moves with a uniform acceleration of 0.1 m//s^(2) for 2 minutes. Find (a) the speed acquired, (b) the distance travelled.

The velocity acquired by a body moving with uniformaccelertion is 30 m s^(-1) in 2s and 60 ms ^(-1) in 4 s , The initial velocity is .

If a projectile having horizontal range of 24 m acquires a maximum height of 8 m, then its initial velocity and the angle of projection are

Two stones are projected with the same speed but making different angles with the horizontal. Their horizontal ranges are equal. The angle of projection of one is pi/3 and the maximum height reached by it is 102 m. Then the maximum height reached by the other in metres is

Two stones are projected with the same speed but making different angles with the horizontal. Their horizontal ranges are equal. The angle of projection of one is pi/3 and the maximum height reached by it is 102 m. Then the maximum height reached by the other in metres is

A ball is thrown at a speed of 20 m/s at an angle of 30 ^@ with the horizontal . The maximum height reached by the ball is (Use g=10 m//s^2 )

A body is projected with an angle theta . The maximum height reached is h. If the time of flight is 4 sec and g=10m//s^2 , then the value of h is

AAKASH SERIES-APPENDICES (REVISION EXERCISE)-MOTION IN A PLANE
  1. Two particles are projected simultaneously in the same vertical plane,...

    Text Solution

    |

  2. A body of mass 2kg is projected from the ground with a velocity 20ms^(...

    Text Solution

    |

  3. A projectile has initially the same horizontal velocity as it would ac...

    Text Solution

    |

  4. A body of mass m1 projected vertically upwards with an initial velocit...

    Text Solution

    |

  5. The maximum distance to which a man can throw a ball by projecting it ...

    Text Solution

    |

  6. A body projected at 45^@ with a velocity of 20 m/s has a range of 10m....

    Text Solution

    |

  7. Two seconds after projection, a projectile is travelling in a directio...

    Text Solution

    |

  8. A stone is projected from the top of a tower with velocity 20ms^(-1) m...

    Text Solution

    |

  9. A cricket fielder can throw the cricket ball with a speed v0. If the t...

    Text Solution

    |

  10. A boy can throw a stone up to a maximum height of 10 m. The maximum ho...

    Text Solution

    |

  11. A particle is projected from the ground with an initial speed u at an ...

    Text Solution

    |

  12. A ball of mass 1 kg is projected with a velocity of 20sqrt(2) m/s from...

    Text Solution

    |

  13. A two particles P and Q are separated by distance d apart. P and Q mov...

    Text Solution

    |

  14. The direction of projectile at certain instant is inclined at angle al...

    Text Solution

    |

  15. A particle is projected from a horizontal floor with speed 10(m)/(s) a...

    Text Solution

    |

  16. If v(1) and v(2) be the velocities at the end of focal chord of projec...

    Text Solution

    |

  17. If a stone is to hit at a point which is at a distance d away and at a...

    Text Solution

    |

  18. An object in projected up the inclined at the angle shown in the figur...

    Text Solution

    |

  19. A projectile is fired with a velocity u at right angles to the slope, ...

    Text Solution

    |

  20. In figure shown below, the time taken by the projectile to reach from ...

    Text Solution

    |