The angle of elevation of a jet plane from a point on the ground is 60∘. After a flight of 30 seconds, the angle of elevation changes to 30∘. If the jet plane is flying at a constant height of 36003–√ m, find the speed of the jet plane.
The angle of elevation of a jet plane from a point on the ground is 60∘. After a flight of 30 seconds, the angle of elevation changes to 30∘. If the jet plane is flying at a constant height of 36003–√ m, find the speed of the jet plane.