Home
Class 12
PHYSICS
If the plane has an eastward heading, an...

If the plane has an eastward heading, and a `20 m//s` wind blows towards the southwest, then the plane’s speed is –

A

`80 m//s`

B

more than `80 m//s` but less than `100 m//s`

C

`100 m//s`

D

more than 100 `m//s`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The pilot maintains an eastward heading while a 20 m//s wind blows northward. The plane’s velocity is deflected from due east by what angle?

A plane moves due east while the pilot points the plane somewhat south of east, toward a steady wind that blows to the northeast. The plane has velocity vecv_(PW) relative to the wind, with an airspeed (speed relative to the wind) of 215 km/h, directed at angle theta south of east. The wind has velocity vecv_(WG) is relative to the ground with speed 65.0 km/h, directed 20.0^@ cast of north. What is the magnitude of the velocity vec_(PG) of the plane relative to the ground, and what is theta ?

An aeroplane pilot wishes to fly due west A wind of 100 km h^-1 is blowing towards south. (a) If the speed of the plane (its speed in still air) is 300 km h^-1 in which direction should the pilot head ? (b) What is the speed of the plane with respect tom ground ? Illustrate with a vector diagram.

The captain of a plane wishes to proceed due west. The cruising speed of the plane is 245 m/s relative to the air. A weather report indicates that a 38.0 m/s wind is blowing from the south to the north. In what direction, measured with respect to due west, should the pilot head the plane relative to the air?

A boat is moving towards south with veloctity 3 m//s with respect to still water and river is flowing towards east with velocity 3 m//s and the wind is blowing towards south-east with velocoity 3 sqrt2 m//s . The direction of the flag blown over by the wind, hoisted on the boat is :

A solid sphere rolls up a plane inclined at 45^(@) to the horizontal. If the speed of its centre of mass at the bottom of the plane is 5 m/s , find how far the sphere travels up the plane.

A plane moves in windy weather due east while the pilot the plane somewhat south of east. The wind is blowing at 50 km/h directed 30^(@) east of north, while the palne moves at 200 km/h relative to the wind . What is the velocity of the plane relative to the ground and what is the direction in which the pilot points the palne ?

A trajectory of a fighter plane is given by the relation y = x + c (when and y represents horizontal and vertical axes). The plane is moving with a constant speed of 30sqrt2 m//s . A machine gun is mounted on the plane. When the plane is at a height of 240m from the ground, a bullet is fired from the machine-gun with a speed of 10 m/s with respect to the plane in the vertical upward direction. (a) Calculate the time after which it will hit the ground (b) Find the maximum height reached by the bullet.

A sailor in a boat, which is going due east with a speed of 8m//s observes that a submarine is heading towards north at a speed of 12m//s and sinking at a rate of 2 m//s .The commander of submarine observes a helicopter ascending at a rate of 5 m//s and heading towards west with 4 m//s .Find the speed of the helicopter with respect to boat.

DISHA-MOTION IN A STRAIGHT LINE-Physics
  1. Time taken by an object falling from rest to cover the height of h(1) ...

    Text Solution

    |

  2. Three different objects of masses m(1) , m(2) and m(2) are allowed to ...

    Text Solution

    |

  3. From the top of a tower, a particle is thrown vertically downwards wit...

    Text Solution

    |

  4. A body falls from a height h = 200 m (at New Delhi). The ratio of dist...

    Text Solution

    |

  5. The effective acceleration of a body, when thrown upwards with acceler...

    Text Solution

    |

  6. An aeroplane is moving with a velocity u. It drops a packet from a hei...

    Text Solution

    |

  7. Two trains, each 50 m long, are travelling in opposite directions with...

    Text Solution

    |

  8. A train of 150 m length is going toward north direction at a speed of ...

    Text Solution

    |

  9. The distance between two particles is decreasing at the rate of 6 m/se...

    Text Solution

    |

  10. A train is moving due east and a car is moving due north with equal sp...

    Text Solution

    |

  11. An express train is moving with a velocity v1. Its driver finds anothe...

    Text Solution

    |

  12. Two particles move simultaneously from two points A and B, 300m apart...

    Text Solution

    |

  13. A plane is to fly due north. The speed of the plane relative to the ai...

    Text Solution

    |

  14. From the top of a multi-storeyed building 40m tall, a boy projects a s...

    Text Solution

    |

  15. If the plane has an eastward heading, and a 20 m//s wind blows towards...

    Text Solution

    |

  16. The pilot maintains an eastward heading while a 20 m//s wind blows nor...

    Text Solution

    |

  17. Let phi denote the answer of above question. The plane has what speed ...

    Text Solution

    |

  18. Assertion:- The magnitude of velocity of two boats relative to river i...

    Text Solution

    |

  19. Statement-1 : The acceleration of a body of mass 2 kg thrown verticall...

    Text Solution

    |

  20. Statement-1 : The velocity of a body A relative to the body B is the s...

    Text Solution

    |