Two poles of heights 18 meter and 7 meter are erected on a ground. The length of the wire fastened at their tops in 22 meter. Find the angle made by the wire with the horizontal.

Two vertical poles of heights 6 m and 3 m are erected above a horizontal ground AC. Find the value of y.

Two poles 12 cm and 22 cm stand vertically on a plane ground. If the distance between their tops is 26 cm find the distance between their feet :

A circus artist is climbing a 20m long rope, which is tightly stretched and tied from the top of a vertical pole to the ground. Find the height of the pole, if the angle made by the rope with the ground level is 30^(@) ( see figure ).

The circular wire of diameter 10 cm is cut and placed along the circumference of a circle of diameter 1 meter. The angle subtended by the wire at the centre of circle is equal to

A car is moving in a circular horizontal track of radius 10 m with a constant speed of 10 m//s .A bob is suspended from the roof of the car nby a light wire of length 1.0m.The angle made by the wire with the vertical is

The tops of two poles of height 20 m and 14 m are connected by a wire. If the wire makes an angle of 30o with horizontal, then the length of the wire is (a) 12 m (b) 10 m (c) 8 m (d) 6 m

Two poles of equal heights are standing opposite to each other on either side of the road, which is 120 feet wide. From a point between them on the road, the angles of elevation of the top of the poles are 60^(@) and 30^(@) respectively. Find the height of the poles and the distances of the point from the poles.

Shows a situation similar to the previous problem. All parameters are the same except that a battery of emf epsilon and a variable resistance R are connected wires. Let theta be the angle made by the rod from the horizontal position (shown in the figurer), measuredin the clockwise direction. During the part of the motion Oltthetaltpi/4 the only forces acting on the rod are gravity and the forces exerted by the magnetic field and the pivot. However, during the part of the motion, the resistance R is varied in such a way that the rod continues to rotate with a constant angular velocity omega . Find the value of R in terms of the given quantities.

From the top of a lighhouse, the angles of depression of two ships on the opposite sides of it are observed to be 30^(@) and 60^(@) . If the height of the lighthouse is h meters and thhe line joining the ships passes through the foot of the lighthouse. show that the distance between the ships is (4h)/(sqrt(3)) m.