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A straight highway leads to the foot of a 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 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.

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A straight highway leads to the foot of a tower. A man standing at the top of the tower observes a car at angle of depression of 30o , which is approaching to the foot of the tower with a uniform speed. Six seconds later, the angle of depression of the car is found to be 60o . Find the further time taken by the car to reach the foot of the tower.

A straight highway leads to the foot of a tower. A man standing at the top of the tower observes a car at angle of depression of 30^0, which is approaching to the foot of the tower with a uniform speed. Six seconds later, the angle of depression of the car is found to be 60^0dot Find the further time taken by the can to reach the foot of the tower.

A man of a cliff observes a boat at an angle of depression of 30^(@) which is approaching the shore to the point immediately beneath the observer with a uniform speed.Six minutes later,the angle of depression of the boat is found to be 60^(0). Find the time taken by the boat to reach the shore.

A man on a cliff observes a boat at an angle of depression of 30^(@) which is approaching the shore to the point immediately beneath the observer with a uniform speed.Six minutes later; the angle of depressions of the boat is found to be 60^(@). Find the time taken by boat to reach the shore.

A man observes a car from the top of a tower, which is moving towards the tower with a uniform speed. If the angle of depression of the car change from 30^(@)" and "45^(@) in 12 minutes, find the time taken by the car now toreach the tower.

From the top of a tower 180 m high, it was observed that the angle of depression of the bottom of a cat sitting on the ground was 30^(@) . Find the distance of the cat from the foot of the tower.

A man on the top of a tower: standing on the seashore: finds that a boat coming towards him takes 10 min for the angle of depression to change from 30^(@) to 60^(@). Find the time taken by the boat to reach the shore from this position

From the top of a cliff 300 metres high, the top of a tower was observed at an angle of depression 30^@ and from the foot of the tower the top of the cliff was observed at an angle of elevation 45^@ , The height of the tower is

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