Two poles of height 3 m and 2m are erected upright on the ground and ropes are stretched from the top of each to the foot of the tower.
At what height above the ground do the ropes cross each other.
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Two poles of height 3 m and 2m are erected upright on the ground and ropes are stretched from the top of each to the foot of the tower. Prove that this height would be the same whatever be the distance between the poles. .

Two poles are erected upright on the ground and ropes are stretched from the top of each to the foot of the tower. Taking the heights of the poles as 'a' and 'b' and height above the ground of the point where the ropes cross each other as h, find the relation between a,b and h. .

A ball is dropped from the top of a tower.prove that,the height of the tower is 20m if the ball reaches the ground with a velocity 20 m//s .

A tree breaks due to a strom 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 8m. Find the height of the tree.

Work is required to lift a body through a height from the ground, Calculate the work done in lifting a body of mass 10 kg to a height of 10m above the ground.