An observer spots a balloon moving with the wind in a horizontal line at a
icht of 105 m from the ground. The angle of elevation of the balloon after sometime reduces from 60° to 30°. Find the distance travelled by the balloon
during the interval.
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l1060 is equals to root 3 is equals to 1 note 5 x x is equals to 1 note 5A root 3 x is equal to 35 into 3 into under root 3 X is equals to 35 into root 3 into root 3 by root 3 root x is equals to 35 by root 3 tan 30 is equals opposite by division 1 by root 3 is equal to 1.5 adjacent adjacent is equal to 1.5 into root 3 is equals to 1 9 5 9 3 1 2 3 - 35 root 3 is equals to 15 into 1.732 - 35 into 1.32 = 11 81 8869 the 60.6 to is equal to 120 1.4
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