Answered

THE ANGLE OFELEVATION OF AN AEROPLANE FROM A POINT ON THE GROUND IS 60.AFTER FLYING 15SECONDS THE ANGLE OF ELEVATION CHANGES TO 30.IF THE AEROPLANE IS FLYING AT A CONSTANT HEIGHT OF 1500√3 ,FIND THE SPEED OF THE AEROPLANE

Answer :

Ekman
Speed of plane is: 200 m/s or 731.707 km/h