The angle of elevation of an aeroplane from a point on the ground is 60 deg. After flying for 30 seconds, the angle of elevation changes to 30 deg. If the aeroplaneÂ is flying at a height of 4500 m, then what is the speed (in m/s) of aeroplane?

The angle of elevation of an aeroplane from a point on the ground is 6

1.	The angle of elevation of an aeroplane from a point on the ground is 60 deg. After flying for 30 seconds, the angle of elevation changes to 30 deg. If the aeroplaneÂ is flying at a height of 4500 m, then what is the speed (in m/s) of aeroplane?
A.	50âˆš3
B.	100âˆš3
C.	200âˆš3
D.	300âˆš3
Answer» C. 200âˆš3

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The angle of elevation of an aeroplane from a point on the ground is 60 deg. After flying for 30 seconds, the angle of elevation changes to 30 deg. If the aeroplaneÂ is flying at a height of 4500 m, then what is the speed (in m/s) of aeroplane?

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