A tree of 15 m height was broken due to a heavy wind at a height of h m from the ground.But the broken ends were not completely separated and the top of the tree remained just touching the ground in a slanting position.If the broken portion of the tree makes an angle of `30^@` with the ground find h.

A tree breaks due to storm and the broken part bends so that the top of the tree touches the ground making an angle 30^@ with it.The distance between the foot of the tree to the point where the top touches the ground is 8 m.Find the height of the tree.

If the top of a temple subtends an angle of 30^@ at a point on the ground 300m away from its base,find the height of the temple.

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 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.

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.

A ladder is kept standing at a slanting position against a wall of a house and in this position the base of the ladder is at a distance of 9.5m from the wall.If the ladder makes an angle of 60^@ with the ground level,find the length of the ladder.

A stone is released from the top of a tower of height 19.6 m. Calculate its final velocity just before touching the ground.

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.

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.

A 1.2m tall girl spots a balloon moving with the wind in a horizontal line at a height of 88.2 m from the ground.The angle of elevation of the balloon from the eyes of the girl at any instant is 60^@ .After some time,the angle of elevation reduces to 30^@ (see Fig 9.13),Find the distance travelled by the balloon during the interval..