Question

QUE:- a boy , whose eye level is 1.3m from the ground , spots a ballon moving with the wind in a horizontal line at same height from the ground . the angle of elevation of the baloon from the eyes of the boy at any instant is 60 degree . after 2 seconds, the angle of elevation reduces to 30 degree if the speed of the wind at the moment is 29 root 3 m/s , then find the height of the baloon from the ground.

Answer 1

88.3 METRES IS THE ANSWER