one end of a thead of lengthh has a stone tied to it . Taking the other end as the centre, it is revolved in a vertical plane. When the stone reaches the lowest point of its path, it attains the speed u. when the thread is horizontal ,the speed of the stone is

one end of a thead of lengthh has a stone tied to it . Taking the othe

1.	one end of a thead of lengthh has a stone tied to it . Taking the other end as the centre, it is revolved in a vertical plane. When the stone reaches the lowest point of its path, it attains the speed u. when the thread is horizontal ,the speed of the stone is
Answer» `SQRT(u^2-2gh)` `sqrt(2gh)` `sqrt(u^2-gh)` `2sqrt(u^2-gh)` ANSWER :A