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 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 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.

A man on a cliff observes a boat at an angle of depression 30^(@) which is sailing towards the shore to the point immediately beneath him. Three minutes later the angle of depression of the boat is found to be 60^(@) . Assuming that the boat sails at a uniform speed, determine how much more time it will take to reach the shore.

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 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 man on the top of a tower,standing on the seashore,finds that a boat coming towards him takes 10 minutes for the angle of depression to change from 30o to 60o. Find the time taken by the boat to reach the shore from the position.

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

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.

A person from the top of a hill observes a vehicle moving towards him at a uniform speed. It takes 10 minutes for the angle of depression to change from 45^(@) to 60^(@) . After this the time required by the vehicle to reach the bottom of the hill is: