A small ball is projected from point P towards a vertical wall as shown in Fig. It hits the wall when its velocity is horizontal. Ball reaches point P after one bounce on the floor. The coefficient of restitution assuming it to be same for two collisions is n//2. All surfaces are smooth. Find the value of n.

A small ball is projected from point P towards a vertical wall as show

1.	A small ball is projected from point P towards a vertical wall as shown in Fig. It hits the wall when its velocity is horizontal. Ball reaches point P after one bounce on the floor. The coefficient of restitution assuming it to be same for two collisions is n//2. All surfaces are smooth. Find the value of n.
Answer» Solution :`u` time `(AB)=eu`(time `BC`)`+eu`(time `CA`) `uv/g=eu(v/g)+euxx2(EV)/gimpliese=1/2` `n=1`