The angle of elevation of an aeroplane from a point on the ground is `45o` . After a flight of 15 seconds, the elevation changes to `30o` . If the aeroplane is flying at a height of 3000 metres, find the speed of the aeroplane.

The angle of elevation of an aeroplane from a point on the ground is 45^@ . After a flight of 15 sec, the eleva-tion changes to 30^@ . If the aeroplane is flying at a height of 3000 meters, find the speed of the aeroplane.

The angle of the elevation of an aeroplane from a point on the ground is 45^(@) . After flying for 15 seconds, the elevation changes to 30^(@) . If the aeroplane is flying at a height of 2500 metres. Find the speed of the aeroplane.

The angle of elevation of an aeroplane from a point P on the ground is 60. After a flight of 15 seconds,the angle of elevation changes to 30 . If the aeroplane is flying at a constant height of 15003m, find the speed of the aeroplane.

The angle of elevation of an aeroplane from a point on the ground is 45^(@) . After flying for 15 second, the elevation changes to 30^(@) . If the aeroplane is flying at a height of 2500 meters, then appproximate speed of the aeroplane in kmph is

The angle of elevation of an aeroplane from a point P on the ground is 60^(@). After a flight of 15 seconds,the angle of elevation changes to 30^(@). If the aeroplane is flying at a constant height of 1500sqrt(3)m, find the speed of the aeroplane

The angle of elevation of a jet plane from a point A on the ground is 60o .After a flight of 30 seconds,the angle of elevation changes to 30o. If the jet plane is flying at a constant height of 3600sqrt(3)m, find the speed of the jet plane.

The angle of elevation of an aeroplane from a point on the ground is 60^@ . After flying for 30 seconds, the angle of elevation changes to 30^@ . If the aeroplane is flying at a height of 4500 m,then what is the speed (in m/s) of aeroplane? मैदान पर एक बिन्दु से एक हवाई जहाज का उन्नयन कोण 60^@ है। 30 सेकण्ड उड़ने के पश्चात कोण 30^@ में परिवर्तित हो जाता हे। यदि हवाई जहाज 4500 मी. की ऊँचाई पर उड़ रहा है, तो हवाई जहाज की गति (मी./से. में) क्या है?

The angle of elevation of an aeroplane from a point on the ground is 60^(@) .After 15 seconds flight ,the elevation changes to 30^(@) .If the aeroplane is flying at a height of 1500sqrt(3) m , find the speed of the plane

The angle of elevation of an airplane from a point on the ground is 60^(@) . After a flight of 30 seconds, the angle of elevation becomes 30^(@) . If the airplane is flying at a constant height of 3000sqrt(3) m, find the speed of the airplane.

The angle of elevation of an aeroplane from a point on the ground is 60^(@) . After flying for 15 seconds, the elevation changes to 30^(@) . If the aeroplane is flying at a speed of 720 kmph, then find the constant height at which aeroplane is flying. " [take "sqrt(3)=1.732]