Question

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 car to reach the foot of the tower
from this point.
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Answer 1

Answer:

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Here is the answer.

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Answer 2

Question:

A straight highway leads to the foot of a tower. A man standing at the top of the tower observes a car as an angle of depression of 30°, which is approaching the foot of the tower with a 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.

Answer:

see above attachment