A ladder 15m long reaches a window which is 9 m above the ground on one side of a street. Keeping its foot at the same point, the ladder is turned to other side of the street to reach a window 12m high. Find the width of the street.

A ladder 25m long reaches a window of building 20m above the ground. Determine the distance from the foot of the ladder to the building.

In the road of Laxmi's locality there is a ladder of 15m length kept in such a way that it has touched Pujas's window at a height of 9 m above the ground. Now keeping the foot of the ladder at the same point of that road, the ladder is rotated in such a way that it touched Laxmi's window situated on the other side of the road. If Laxmi's window is 12m above the ground, then determine the breadth of that road.

A ladder of length 10m just touches a window 8 m high from the ground on a wall. Find the distance between the foot of the ladder from the wall.

Two houses stand just on the opposite sides of a road of a village. A ladder that stands against the wall of the first house is at a distance of 6 metres from the house and makes an angle of 30^(@) with the horizontal line.But if the ladder stands against the wall of the second house keeping its foot at the same point, it makes an angle of 60^(@) with the horizontal line. (a) Find the length of the ladder. (b) Calculate the distance of the foot of the ladder from the foot of the wall of the second house. (c) Find the width of the road. Find the height where the top of the ladder is fixed against the wall of the second house.

A TV tower stands vertically on the side of a road. From a point on the other side directly opposite to the tower, the angle of elevation of the top of tower is 60^(@) From another point 1m away from this point, on the line joining this point to the foot of the tower, the angle of elevation of the top of the tower is 30^(@) . Find the height of the tower and the width ofthe road.

A man 2m tall, walks at the rate of 1 2/3m//s e c towards a street light which is 5 1/3 m above the ground. At what rate is tip of his shadow moving? At what rate is the length of the shadow changing when he is 3 1/(13)m from the base of the light?

In the window of a house, there is a ladder at an angle of 60^(@) with the ground. If the ladder is 2sqrt(3) m long, then calculate with figure, the height of the window above the ground.

A body of mass 1 kg falls to the ground from the roof of a building 20 m high. Find its (ii) velocity when it reaches the ground,