A stone of mass `6 kg` is revolved in a vertical circle of diameter `6m`., such that its speed is minimum at a point. If the `K.E` at the same point is `250 J`, then minimum `PE` at that point is

A small stone of mass 50 g is rotated in a vertical circle of radius 40 cm. What is the minimum tension in the string at the lowest point?

A small stone of mass 50 g is rotated in a vertical circle of radius 40 cm. What is the minimum tension in the string at the lowest point?

A body of mass m is revolving along a vertical circle of radius r such that the sum of its kinetic speed of the body at the highest point is sqrt2 rg then the speed of the body at the lowest point is

A stone is tied to a weightless string and revolved in a vertical circle of radius 5 m . What should be the minimum speed of the stone at the highest point of the circle so that the string does not slack ? What should be the speed of the stone at the lowest point of vertical circle ? Take g = 9.8 ms^(2) .

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

A body of mass m is revolving along a vertical circle of radius r such that the sum of its kinetic energy and potential energy is constant. If the speed of the body at the highest point is sqrt (2rg) then the speed of the body at the lowest point is

A stone of mass 0.4 kg is tied to a string and rotated in a vertical circle of radius 1.2 m . Calculate the speed of the stone for which the tension in the string is zero at the highest point of the circle . What is the tension at the lowest point in this case ?

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