Guest

A plane flying horizontally at a height of 1500 m with the velocity of 200 m/s passes directly overhead an antiaircraft gun. Then the angle with the horizontal at which the gun should be fired for the shell with a muzzle velocity of 400m/s to hot the plane, is

A plane flying horizontally at a height of 1500 m with the velocity of 200 m/s passes directly overhead an antiaircraft gun. Then the angle with the horizontal at which the gun should be fired for the shell with a muzzle velocity of 400m/s to hot the plane, is

Grade:11

1 Answers

Arun
25750 Points
6 years ago
if we make a simple figure of how it is projected. then,
assume after t sec the bullet strikes the plane.
so the distance covered by plane=horizontal distance covered by the bullet
200 t=(400 cos \theta)t
\theta=60 degrees with horizontal

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free