A solid sphere of radius .r. is rolling on a horizontal surface. The ratio between the rotational kinetic energy and total energy

A solid sphere of radius .r. is rolling on a horizontal surface. The r

1.	A solid sphere of radius .r. is rolling on a horizontal surface. The ratio between the rotational kinetic energy and total energy
Answer» `(5)/(7)` `(2)/(7)` `(1)/(2)` `(1)/(7)` Answer :B