A wire attached to a vertical pole of height 18m is 24m long and has a stake attached to the other end. How far from the base of the pole should the stake be driven so that the wire will be taut?

You want to erect a pole of height 10 m with the support of three ropes. Each rope has to make an angle 30^(@) with the pole. What should be the length of the rope?

A hanging wire of length L is elongated by an amount l with a load M attached to its free end. Prove that the elastic potential energy stored in the wire is 1/2Mgl .

A wire of length 28 m is to be cut into two pieces . One of the pieces is to be made into a square and the other into a circle . What should be the lengths of the two pieces so the two pieces so that the combined area of the circle and the square is minimum.

A wire of length 28 m is to be cut into two pieces. One of the pieces is to be made into a square and the other into a circle. What should be the length of the two pieces so that the combined area of the square and the circle is minimum?

The tops of two poles of height 10 m and 18 m are connected with wire. If wire makes an angle of 30^@ with horizontal, the length of wire is____