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Rajan@2021
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A straight highway leads to the foot of the tower, a man standing at the top of the tower observes a car at an angle of depression of 30 ∘ which is approaching the foot of the tower with uniform speed. Six seconds later, the angle of depression of the car is found to be 60 ∘ . Find the time taken by the car to reach the foot of the tower from this point

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An important and exam oriented question from trigonometry (height and distance) in which we to find the time consumed by the car to reach the foot of a tower if a straight highway leads to the foot of the tower, a man standing at the top of the tower observes a car at an angle of depression of 30  which is approaching the foot of the tower with uniform speed. Six seconds later, the angle of depression of the car is found to be  60.

Book RS Aggarwal, Class 10, Chapter 14, question no 14

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