A partcle rests on the top of a hemisphere of radiu R. Find the smallest horizontal velocity that must be imparted to the particle if it is to leave the hemisphere without sliding down it-

A partcle rests on the top of a hemisphere of radiu R. Find the smalle

1.	A partcle rests on the top of a hemisphere of radiu R. Find the smallest horizontal velocity that must be imparted to the particle if it is to leave the hemisphere without sliding down it-
Answer» `SQRT(GR)` `sqrt(2gR)` `sqrt(3gR)` `sqrt(5gR)` ANSWER :A