A body is revolving in a vertical circle with constant mechanical energy. The speed of the body at the highest point is `sqrt(2rg)`. The speed of the body at the lowest point is

A body is moving in a circular path with a constant speed. It has .

A body is moving in a circular path with a constant speed. It has .

A stone is tied to one end of a light inexensible string of length l and made to roate on a vertical circle keeping other end of the spring at the centre. If speed of stone at the highest point is v(v gt sqrt(gl)) then its speed at the lowest point is

A body is moving in a vertical circle of radius r such that the string is just taut at its highest point. The speed of the particle when the string is horizontal is

A particle of mass m is being circulated on a vertical circle of radius r. If the speed of particle at the highest point be v, then

A body is mass m is rotating in a vertical circle of radius 'r' with critical speed. The difference in its K.E at the top and at the bottom is

A body is projected horizontally with speed 20 ms^(-1) . The speed of the body after 5s is nearly

The escape speed of a body from the earth depends upon

A particle is revolving in a circle with increasing its speed uniformly. Which of the following is constant ?

A particle is revolving in a circle with increasing its speed uniformly. Which of the following is constant ?