A solid sphere is rolling without slipping on rough ground as shown in figure. It collides elastically with an identical another sphere at rest. There is no friction between two spheres. Radius of each sphere is R and mass is m. Then linear velocity of first sphere (A) after it start rolling without slipping is

A solid sphere is rolling without slipping on rough ground as shown in

1.	A solid sphere is rolling without slipping on rough ground as shown in figure. It collides elastically with an identical another sphere at rest. There is no friction between two spheres. Radius of each sphere is R and mass is m. Then linear velocity of first sphere (A) after it start rolling without slipping is
Answer» `(2)/(3)omegaR` `(2)/(7)omegaR` `(7)/(10)omegaR` `(7)/(5)omegaR` ANSWER :B