Home
Class 11
PHYSICS
A fighter plane flying horizontally at a...

A fighter plane flying horizontally at an altitude of 2 km with speed of 540 kmph passes directly over head an antiaircraft gun. If the gun can fire a bullet at the muzzle speed of `500ms^(-1)` , at angle with the vertical the gun should fire the bullet so that the bullet hits the plane ?

A

`Cos^(-1)(3//10)`

B

`Sin^(-1)(3//10)`

C

`tan^(-1)(10//3)`

D

`45^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-VI) (Horizontal Projectile ) (Integer Type Questions)|1 Videos
  • KINEMATICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-VII) (Relative motion) (Straight Objective Type Questions)|20 Videos
  • KINEMATICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-V) (Oblique Projectile & Projecting on incline plane ) (Integer Type Questions)|1 Videos
  • HORIZONTAL CIRCULAR MOTION

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (PRACTICE SHEET (ADVANCED) Integer Type Questions)|3 Videos
  • KINETIC THEORY OF GASES

    AAKASH SERIES|Exercise Practice Exercise|15 Videos

Similar Questions

Explore conceptually related problems

An enemy plane is flying horizontally at an altitude of 2 km with a speed of 300 ms^(-1) An army man with an anti-aircraft gun on the ground sights hit enemy plane when it is directly overhead and fires a shell with a muzzle speed of 600 ms^(-1) . Ar what angle with the vertical should the gun be fired so as to hit the plane ?

A machine gun can fire 200 bullets/min. If 35 g bullets are fired at a speed of 750 m/s, then the average force exerted by the gun on the bullets is