A 1.2 m tall girl spots a balloon movingwith the wind in a horizontal line at aheight of 88.2 m from the ground. Theangle of elevation of the balloon fromthe eyes of the girl at any instant is60°. After sometime, the angle ofelevation reduces to 30°. Find thedistance travelled by the balloonduring the interval.1.AS

A 1.2 m tall girl spots a balloon movingwith the wind in a horizontal

1.	A 1.2 m tall girl spots a balloon movingwith the wind in a horizontal line at aheight of 88.2 m from the ground. Theangle of elevation of the balloon fromthe eyes of the girl at any instant is60°. After sometime, the angle ofelevation reduces to 30°. Find thedistance travelled by the balloonduring the interval.1.AS
Answer»