10th Class
Mathematics
Some Applications of Trigonometry
Question Bank
Trigonometry and Its Application
question_answer
The angle of elevation of a jet plane from a point Q on the ground is\[\mathbf{60{}^\circ }\]. After a flight of 20 seconds, the angle of elevation changes to\[\mathbf{45{}^\circ }\]. If the Jet plane is flying at a constant height of 3000\[\sqrt{\mathbf{3}}\] m, then find the speed of the jet plane.