An aeroplane when flying at a height of 4000m from the ground passes vertically above another aeroplane at an instant when the angles of the elevation of the two planes from the same point on the ground are `60^0&45^0` respectively. Find the vertical distance between the aeroplanes at that instant.

An aeroplane when flying at a height of 4000m from the ground passes vertically above another aeroplane at an instant when the angles of the elevation of the two planes from the same point on the ground are 60^@ and 45^@ respectively. Find the vertical distance between the aeroplanes at that instant.

An aeroplane, when 3000 m high, passes vertically above anthoer aeroplane at an instant when the angles of elevation of the two planes from the same point on the ground are 45^(@)" and "60^(@) respectively. Find the vertical distance between the tow planes.

An aeroplane flying at a height 300 metre above the ground passes vertically above another plane at an instant when the angles of elevation of the two planes from the same point on the ground are 60^@ and 45^@ respectively. Then the height of the lower plane from the ground in metres is

The lower window of a house is at a height of 2m above the ground and its upper window is 4m vertically above the tower window. At certain instant the angles of elevation of a balloon from these windows are observed to be 60^(@) and 30^(@) , respectively. Find the height of the balloon above the ground.

The angle of elevation of the top of a tower from a point on the ground is 60^(@) . which is 25 m away from the foot of the tower. Find the height of the tower

An aeroplane id flying at a height of 300 m above the ground. Fying at this height , theangles of depression from the aeroplane of two points on both banks of a river in opposite directions are 45^(@)" and "60^(@) respectively. Find the width of the river.[use sqrt3=1.732 ]

The angle of elevation of the top of a tower. from a point on the ground and at a distance of 160 m from its foot, is fond to be 60^(@) . Find the height of the tower .

An aeroplane at an altitude of 1200 metres finds that two ships are sailing towards it in the same direction. The angles of depression of the ships as observed from the aeroplane are 60^o and 30^o respectively. Find the distance between the two ships.

From a point on the ground, 20m away from the foot of a vertical tower, the angle of elevation of the top of the tower is 60^@ , what is the length of the tower?

A kite is flying at a height of 30m from the ground. The length of string from the kite to the ground is 60m. Assuming that three is no slack in the string, the angle of elevation of the kite at the ground is: 45^0 (b) 30^0 (c) 60^0 (d) 90^0