[" An an a man on the top of a vertical abservation tower abour abour a car moving at a uniform sperd on "],[" directly fowards it if it takes "12" minutes or the angle of depression to chan you sperd on in "],[" long will the car take to reach the observation tower from this point? "]

A man on the top of a vertical observation tower observes a car moving at a uniform speed coming directly towards it. If it takes 12 minutes for the angle of depression to changed from 30^@ to 45^@ , how soon after this will the car reach the observation tower? Give your answer correct to the nearest second.

A man on the top of a vertical tower observes a car moving at a uniform speed coming directly towards it. If it takes 12 minutes for the angle of depression to change from 30^0to45^0, how soon after this will the car reach the tower? Give your answer to the nearest second.

A man on the top of a vertical tower observes a car moving at a uniform speed coming directly towards it.If it takes 12 minutes for the angle of depression to change from 30^(0) to 45^(0) ,how soon after this will the car reach the tower? Give your answer to the nearest second.

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:

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