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A man from the top of a 100 m high tower...

A man from the top of a 100 m high tower sees a car moving towards the tower at an angle of depression 30°. After some time, the angle of depression becomes 60°. What is the distance travelled by the car during this time ?

A

`100sqrt(3) m`

B

`(200sqrt(3))/3 m`

C

`(100sqrt(3))/3` m

D

`200sqrt(3)` m

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