An aeroplane when 900 m high passes vertically above another aeroplane at an ins
An aeroplane when 900 m high passes vertically above another aeroplane at an instant when their angles of elevation at same observing point are…
The angle of elevation of the top of a tower from a certain point is 30°. If th
The angle of elevation of the top of a tower from a certain point is 30°. If the observer moves 40 m towards the…
The angle of elevation of the sun, when the length of the shadow of a tree is eq
The angle of elevation of the sun, when the length of the shadow of a tree is equal to the height of the tree,…
The angle of elevation of a ladder leaning against a wall is 60º and the foot o
The angle of elevation of a ladder leaning against a wall is 60º and the foot of the ladder is 12.4 m away from…
Two persons are on either sides of a tower of height 50 m. The persons observers
Two persons are on either sides of a tower of height 50 m. The persons observers the top of the tower at an angle…
A ladder makes an angle of 60° with the ground when placed against a wall. If t
A ladder makes an angle of 60° with the ground when placed against a wall. If the foot of the ladder is 2 m…
Find the angle of elevation of the sun when the shadow of a pole of 18 m height
Find the angle of elevation of the sun when the shadow of a pole of 18 m height is $$6sqrt 3 $$ m long?
A man on the top of a vertical observation tower observers a car moving at a uni
A man on the top of a vertical observation tower observers a car moving at a uniform speed coming directly towards it. If it…
The tops of two poles of height 20 m and 14 m are connected by a wire. If the wi
The tops of two poles of height 20 m and 14 m are connected by a wire. If the wire makes an angle of…
A balloon leaves the earth at a point A and rises vertically at uniform speed. A
A balloon leaves the earth at a point A and rises vertically at uniform speed. At the end of 2 minutes, John finds the…
A lower subtends an angle of 30° at a point on the same level as its foot. At a
A lower subtends an angle of 30° at a point on the same level as its foot. At a second point h metres above…
An observer 2 m tall is $$10sqrt 3 $$ m away from a tower. The angle of elevati
An observer 2 m tall is $$10sqrt 3 $$ m away from a tower. The angle of elevation from his eye to the top…