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=2u_(0) it lands at point P on ground. Find OP.

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=2u_(0) it lands at point P on ground. Find OP.
Answer» `sqrt(2R)` `2r` `4R` `2sqrt(2)r` ANSWER :D