Home
Class 12
PHYSICS
A fighter aeroplane flying in the sky di...

A fighter aeroplane flying in the sky dives with a speed of `360 km//h ` in a vertical circle of radius 200 m .Weight of the pilot sitting in it is 75 kg . What will be the value of force with which the pilot presses his seat when the aeroplane is at highest position ? `(g=10 m//s^(2))`

A

3000 N

B

4500 N

C

`(75xxg) N`

D

300 N

Text Solution

Verified by Experts

The correct Answer is:
A
`V=360xx(5)/(18)=100,r=200 m`
`F=(Mv)/(r)-mg`
`=(75xx100xx100)/(200)-75xx10`
`=(7500)/(2)-750`
`=(7500-1500)/(2)`
`=(6000)/(2)=3000N`
Promotional Banner

Topper's Solved these Questions

  • ATOMS, MOLECULES AND NUCLEI

    NIKITA PUBLICATION|Exercise MCQs|443 Videos

  • COMMUNICATION SYSTEMS

    NIKITA PUBLICATION|Exercise Multiple Choice Questions (Examples for Practice)|8 Videos

Similar Questions

Explore conceptually related problems

An aeroplane flying in the sky dives with a speed of 360 km//h in a verticale circle of radius 200 m The weight of pilot sitting in it is 75 kg Calulate the force with which the pilot presses his seat when the aeroplane is (i) at the lowest position and (ii) at the highest position Take g = 10 m//s^(-2) .

A fighter plane flying in the sky describes a vertical circle of radius 150 m when looping with a speed of 420 km/h . The weight of the pilot sitting inside it is 90 kg . With what force the pilot presses his seat when the plane is at the (i) highest position of circle (ii) lowest position of circle

An aeroplane flying in the sky with a uniform speed of 200 m//s moves in a vertical circle of radius 400 m. The mass of the pilot is 70 kg. The force exerted by the pilot on the seat at the highest point of the circle will be [Take g=10 m//s^2 ]

A pilot of mass 81 kg loops the loop with steady speed of 300 km//h . If the radius is 0.5 km then the force with which the pilot is pressed into the seat at the highest point of the loop ,is (g=10m//s^(2))

A fighter plane moves in a vertical circle of radius 2500 m . The mass of the plane is 15000 kg and its speed at the olowest point of its motion is 900 km/ hour . What is the force exerted by air on the plane at the lowest point (g=10 m//s^(2))

An, aeroplane , flying in the sky, suddenly starts revolving in a vertical circle of radius 4 km. At the highest point of the circle , the pilot experiences weightlessness. Its velocity at the highest point will be

A fighter plane is pulling out for a dive at a speed of 900 km//h . Assuming its path to be a vertical circle of radius 2000 m and its mass to be 16000 kg , find the force exerted by the air on it at the lowest point. Take g=9.8 m//s^(2)

A fighter plane is pulling out for a dive at a speed of 900 km/hr. Assuming its path to be a vertical circle of radius 2000 m and its mass to be 16000 kg, find the force exerted by the air on it at the lowest point. Take g=9.8m/s^2 .

A particle of mass 100 g is moving in a vertical circle of radius 2 m The particle is just looping the loop . What is the speed of the particle and tension in the string at the highest point of the circular path ? . (g =10 ms^(-2)) .

NIKITA PUBLICATION-CIRCULAR MOTION-Multiple Choice Question
  1. A vac moving with a speed of 108 km //h on level road where coefficien...

    Text Solution

    |

  2. A sphere of mass 200 g is attached to an inextensible string of length...

    Text Solution

    |

  3. A fighter aeroplane flying in the sky dives with a speed of 360 km//h ...

    Text Solution

    |

  4. A mass of 5 kg is tied to a string of length 1.0 m is rotated in verti...

    Text Solution

    |

  5. A car is moving with speed 30m//sec on a circular path of radius 500 m...

    Text Solution

    |

  6. The ratio of angular speeds of minute hand and hour hand of a watch is

    Text Solution

    |

  7. When particle revolves with uniform speed on a circular path

    Text Solution

    |

  8. A car of mass 800 kg moves on a circular track of radius 40 m . If the...

    Text Solution

    |

  9. A simple pendulum of mass m and length l stands in equilibrium in vert...

    Text Solution

    |

  10. A wheel of diameter 20 cm is rotating 600 rpm. The linear velocity of ...

    Text Solution

    |

  11. Centripetal force in velocity from can be expressed as

    Text Solution

    |

  12. The banking angle is independednt of

    Text Solution

    |

  13. Calculate the average angular velocity of the hour hand of the of a cl...

    Text Solution

    |

  14. When a vehicle is moving along the horizontal curve road, centripetal ...

    Text Solution

    |

  15. A body of mass m performing UCM with frequency n along the circumferen...

    Text Solution

    |

  16. Maximum safe speed does not depended upon,

    Text Solution

    |

  17. A car is moving along a horizontal curve of radius 20 m , and coeffici...

    Text Solution

    |

  18. If a particle moves with uniform speed its tangntial acceleration will...

    Text Solution

    |

  19. Tension of a string is 6.4 N and load is applied to it at its lower en...

    Text Solution

    |

  20. An electron revolve round the nucleous with the radius of the circular...

    Text Solution

    |