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?

You want to erect a pole of height 25 m with suppot of three ropes each has to make an angle 30^@ with the pole what should be the length of the rope.

The tops of two poles of heights 10 metres and 12 metres are connected by a rope. If the rope makes an angle 30^(@) with the horizontal, the length of the rope in metres is

A contractor wants to set up a slide for the children to play in the park. Hed wants to set it up at the height of 2m and by making an angle of 30^(@) with the ground. What should be the length of the slide?

An electrician wants to repair an electric connection on a pole of height 9m. He needs to reach 1.8 m below the top of the pole to do repair work. What should be the length of the ladder which he should use, when he climbs it at an angle of 60^(@) with the ground? What will be the distance between foot of the ladder and foot of the pole?

A bullet is projected upwards from the top of a tower of height 90 m with the velocity 30 ms^(-1) making an angle 30^(@) with the horizontal. Find the time taken by it to reach the ground is (g=10 ms^(-2))

A uniform rope of length 12 m and mass 6 kg hangs vertically from a rigid support. A block of mass 2 kg is attached to the free end of the rope. A transverse pulse of wavelength 0.06 m is produced at the lower end of the rope. What is the wavelength of the pulse when it reaches the top of the rope ?

A steel pole is 10 m high. To keep the pole upright one end of a steel wire is tied to the top of the pole while the other end has been fixed on the ground. If the steel wire makes an angle of 45 with the horizontal through the base point of the pole, find the lenght of the steel wire is

A 24 m long wire attached to a vertical pole of height 18 m. And it 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?

A bullet is projected upwards from the top of a tower of height 90 m with the velocity 30 ms^(-1) making an angle 30° with the horizontal. The time taken by it to reach the ground is (g=10 ms^(-2) )