3. A solid sphere with mass m = 1.5 kg a radius r = 0.20 m rolls without slipping on a flat surface with an angular velocity of ? = 7.2 rad/s.
(a) What is the total kinetic energy of the sphere?
(b) The sphere then begins to climb a 35o incline plane. Assuming it continues rolling without slipping up the incline, how far up the incline will the sphere travel before stopping?