A straight highway leads to the foot of a tower. Ramaiah standing at the top of the tower observe a car at an angle of depression `30^(@)`. The car 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 straight highway leads to foot of the tower. A man standing at the top of the tower observes a car at an angle of depression of theta , which is approaching the foot of the tower with a uniform speed. Six seconds later the angle of depression is phi . Draw a diagram for this data and analyze.

From the top of a 10 m high tower, the angle of depression of a point on the ground is found to be 30^@ . Find the distance of the point from the base of the tower is

There is a tower beside the road, Rahim standing at the top of the tower observes two cars A and B on either side of the tower at an anglea of depression 30^@ and 60^@ are approaching the foot of the tower with a uniform speed of 10m/sec and 5m/sec respe ctviely.If the height of the tower is 100sqrt 3 , then find the whihc car reaches the tower first and how many seconds the other car is late by the first one.

What change will be observed in the angle of elevation as we approach the foot of the tower?

From the top of a 10 m height tree the angle of depression of a point on the ground is 30^@ then the distance of the point from the foot of the tree is

A player sitting on the top of a tower of height 40m observes the angle of depression of a ball lying on the ground is 60^(@) . The distance between the foot of the tower and ball is…………m.

A body took 't' sec. to come down from top of tower.Find the time taken to cover half the height of the tower .

From the top of a building 60 m high the angle of elevation of the top of a tower is found to be angle of depression of the foot of the tower. The height of the tower in meter is

From the top of a chiff 30 metres high, the angle of elevation of the top of a tower is found to be equal to the angle of depression of the foot of the tower. The height of the tower is

From the top of a cliff x mts heigh, the angle of depression of the foot of a tower is found to be double the angle of elevation of the tower. If the height of the tower is h, the angle of elevation is