A man on the top of a vertical observation tower observers a car moving at a uniform speed coming directly towards it. If it takes 8 minutes for the angle of depression to change from 30 to 45 , how

A man on the top of a vertical observation tower observers a car movin

1.	A man on the top of a vertical observation tower observers a car moving at a uniform speed coming directly towards it. If it takes 8 minutes for the angle of depression to change from 30 to 45 , how
A.	6 min 57 second
B.	8 min 57 second
C.	10 min 57 second
D.	12 min 57 second
Answer» D. 12 min 57 second

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A man on the top of a vertical observation tower observers a car moving at a uniform speed coming directly towards it. If it takes 8 minutes for the angle of depression to change from 30 to 45 , how

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