A conical pendulum consist of a small bob of mass 0.20kg attached to an inextensible string of length 0.8m. The bob rotates in a horizontal circle of radius 0.40m, of whcih the centre is vertically below the point of suspension. Calculate; A) The linear speed of the bob B) The period of rotation of the bob C) The tension in the string and draw the diagram of the conical pendulum