A kite is flying at a height of 60 m above the ground.The string attached to the kite is temporarily tied to a point on the ground.The inclination of the string with the ground is`60^@`.Find the length of the string,assuming that there is no slack in the string.

The angle of elevation of the top of a tower from a point on the ground,which is 30m away from the foot of the tower,is 30^@ .Find the height of the tower.

When the altitude of the sun is 30^@ the length of the shadow of a minaret on the ground is 30m .When the altitude of the sun is 60^@ ,find the length of the shadow of the minaret.

An aircraft is flying at a height of 3400 m above the ground. If the angle subtended at a ground observation point by the aircraft positions 10.0 s apart is 30^@ what is the speed of the aircraft?

The length of the string of a kite flying at 100 mts above the ground with the elevation of 60^@ is

A vertical post of height 5sqrt3 m above the horizontal ground casts a shadow of length 15 m on the ground.Find the angle of elevation of the sun.

An aeroplane when flying at a height of 3125mfrom the ground passes vertically below another plane at an instant when the angles of elevation of the two planes from the same point on the ground are 30° and 60° respectively. Find the distance between the two planes at the instant.

A statue,1.6m tall,stands on the top of a pedestal.From a point on the ground,the angle of elevation of the top of the statue is 60^@ and from the same point the angle of elevation of the top of the pedestal is 45^@ .Find the height of the pedestal.

When a telephone post is broken by a strong wind,its top touches the ground 3 metres a part from the base making an angle 60^@ .Find the height of the post and also the position at which the post is broken.

If the top of a temple subtends an angle of 60^@ at a point on the ground 400m away from its base,find the height of the temple.

The shadow of a tower standing on a level ground is found to be 40m longer when the sun altitude is 30°, then when it is 60° . Find the height of the tower.