The angle of elevation of an aeroplane from a point on the ground is 45 After 15 - Maths - Some Applications of Trigonometry

Question

The angle of elevation of an aeroplane from a point on the ground
is 45? After 15 seconds of flight the angle changes to 30? If the
plane is flying at the constant height of 2500 m Find the speed of
the plane

Satyam Ranjan Sinha · Accepted Answer

The angle of elevation of an aeroplane from a point on the ground is 45? . After 15 seconds of flight the angle changes to 30? . If the plane is flying at the constant height of 2500 m . Find the speed of the plane .