A body at the end of a string moves in a vertical circle. The string always pulls the body towards the centre of the circle. Find the tension in the string when the body is at the highest point and at the lowest point.

What is the value of V at the highest point if a body is projected vertically ?

A string of length L fixed at one end carries a mass M at the other end. The string makes 2/pi revolutions per second around the vertical axis through the fixed end as shown in the figure what is the tension in the string ?

A half kg weight is tied to one end of a metal wire of length 0.6 m . By holding the other end in the hand, the wire is whirled in a vertical and has an angular velocity of 2 r.p.s. at bottom of the circle. What is the elongation of the wire at the lowest point ? Area of cross-section of the wire = 5 x 10 ^(-6) m^2 . Y for steel = 2 x 10^10 N/m^2 .

Find the equation of circles determined by the following conditions.The centre is on the x-axes and the circle passes through the origin and the point (4, 2).

When a body moves with a constant speed along a circle, What is the work done by it ?