Home
Class 12
MATHS
The angle of elevation of a jet plane fr...

The angle of elevation of a jet plane from a point A on the ground is `60^@`. After a flight of 20 seconds at the speed of 432 `km//"hour"`, the angle of elevation changes to `30^@`. If the jet plane is flying at a constant height, then its height is :

A

`1800sqrt3` m

B

`3600sqrt3` m

C

`2400sqrt3` m

D

`1200sqrt3`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • JEE MAIN 2021

    JEE MAINS PREVIOUS YEAR|Exercise SECTION-B|50 Videos

  • JEE MAIN 2021

    JEE MAINS PREVIOUS YEAR|Exercise (SECTION - A)|20 Videos

  • JEE MAIN 2021

    JEE MAINS PREVIOUS YEAR|Exercise Mathematic section B|10 Videos

  • JEE MAIN

    JEE MAINS PREVIOUS YEAR|Exercise QUESTION|1 Videos

  • JEE MAIN 2022

    JEE MAINS PREVIOUS YEAR|Exercise Question|454 Videos

Similar Questions

Explore conceptually related problems

The angle of elevation of a jet plane from a point A on the grund is 60^(@). After and flight of 30 seconds,the angle of elevation changes to 30^(@). If the jet plane is flying at a constant height of 3600sqrt(3)m, find the speed of the jet plane.

The angle of elevation of a jet plane from a point A on the ground is 60o .After a flight of 30 seconds,the angle of elevation changes to 30o. If the jet plane is flying at a constant height of 3600sqrt(3)m, find the speed of the jet plane.

The angle of elevation of a jet plane from a point A on the ground is 60^(@). After a flight of 15 seconds,the angle of elevation changes to 30^(@). If the jet plane is flying at a constant height of 1500sqrt(3) meter,find the jet plane.(sqrt(3)=1.732)

The angle of elevation of an aeroplane from a point P on the ground is 60^(@). After a flight of 15 seconds,the angle of elevation changes to 30^(@). If the aeroplane is flying at a constant height of 1500sqrt(3)m, find the speed of the aeroplane

The angle of elevation of an aeroplane from a point P on the ground is 60. After a flight of 15 seconds,the angle of elevation changes to 30 . If the aeroplane is flying at a constant height of 15003m, find the speed of the aeroplane.

The angle of elevation of an airplane from a point on the ground is 60^(@) . After a flight of 30 seconds, the angle of elevation becomes 30^(@) . If the airplane is flying at a constant height of 3000sqrt(3) m, find the speed of the airplane.

The angle of elevation of a fighter from point A on the ground is 60^(@) After a flight of 15 seconds the angle of elevation changes to 30^(@). If the jet is fighting at a speed of 720km/hour . Find the constant height at which the jet is flying.

The angle of elevation of an aeroplane from a point on the ground is 60^(@) . After flying for 30 seconds, the angle of elevation charges to 30^(@) . If the aeroplane is flying at a height of 4500 m, then what is the speed (in m/s) of aeroplane

The angle of elevation of an aeroplane from a point on the ground is 60^(@) .After flying for 30 seconds ,the angle of elevation changes to 30^(@) .If the aeroplane is flying at a height of 1500sqrt(3) metre , then what is the speed (in m/s) of aeroplane?

The angle of elevation of the top of a building from the foot of the tower is 60^(@) . After a flight of 15 seconds, the angle of elevation changes to 30^(@) . If the aeroplane is flying at a constant height of 1500sqrt3 m find the speed of the plane in km/hr.

JEE MAINS PREVIOUS YEAR-JEE MAIN 2021-SECTION-A
  1. Equation of plane through (1,0,2) and line of intersection of planes v...

    Text Solution

    |

  2. If P is a point on the parabola y = x^2+ 4 which is closest to the str...

    Text Solution

    |

  3. The angle of elevation of a jet plane from a point A on the ground is...

    Text Solution

    |

  4. If n ge 2 is a positive integer, then the sum of the series ""^(n+1)C...

    Text Solution

    |

  5. Let f(x)={(-55x,,,xlt-5),(2x^3-3x^2-120x,,,-5lexlt4),(2x^3-3x^2-36x+10...

    Text Solution

    |

  6. Let f be a twice differentiable function defined on R such that f(0) ...

    Text Solution

    |

  7. For which of the following curves, the line x + sqrt3 y = 2sqrt3 is th...

    Text Solution

    |

  8. The value of the integral, int1^3 [x^2-2x–2]dx , where [x] denotes the...

    Text Solution

    |

  9. Evaluate tan(1/4*Sin^-1(sqrt(63)/8))

    Text Solution

    |

  10. The negative of the statement ~p vv (p ^^ q) is

    Text Solution

    |

  11. A curve y=ax^2+bx+c passing through the point (1,2) has slope of tange...

    Text Solution

    |

  12. The area of the region : R = {(x, y) : 5x^2 le y le 2x^2 + 9} is :

    Text Solution

    |

  13. Given y=y(x)passing through (1,2) such that xdy/dx +y = bx^4 then find...

    Text Solution

    |

  14. f(0)=1 , f(2)=e^2 , f'(x)=f'(2-x) , then find the value of int0^(2)f(x...

    Text Solution

    |

  15. If A is symmetric matrix and B is skew symmetric matrix of order 3xx3,...

    Text Solution

    |

  16. Let a, b, c be in arithmetic progression. Let the centroid of the tri...

    Text Solution

    |

  17. For the system of linear equations : x - 2y = 1, x - y + kz = -2, k...

    Text Solution

    |

  18. The probability that two randomly selected subsets of the set {1, 2, ...

    Text Solution

    |

  19. Let hati+yhatj+zhatk and xhati-hatj+hatk are parallel then unit vector...

    Text Solution

    |

  20. Let A = {1,2,3,…..10} and f:ArarrA be defined as f(k)={{:(k+1," if k i...

    Text Solution

    |