A small block of mass m is projected horizontally from the top of the smooth and fixed hemisphere of radius r with speed u as shown. For values of uleu_(0)(u_(0)=sqrt(gr)) it does not slide on the hemisphere (i.e leaves the surface at the top itself) For u=u_(0)//3, find the height from the ground at which it leaves the hemisphere.

A small block of mass m is projected horizontally from the top of the

1.	A small block of mass m is projected horizontally from the top of the smooth and fixed hemisphere of radius r with speed u as shown. For values of uleu_(0)(u_(0)=sqrt(gr)) it does not slide on the hemisphere (i.e leaves the surface at the top itself) For u=u_(0)//3, find the height from the ground at which it leaves the hemisphere.
Answer» `(19r)/9` `(19r)/27` `(10r)/9` `(10r)/27` ANSWER :B