[问答题]
Two solid spheres simultaneously start 3 igwur-m 7b2tr-vcu05igewj; olling (from rest) down an incline. One sphere has twice the radius and twice the mass of the otheig-5j v;u0 wecr. Which reaches the bottom of the incline first? Which has the greater speed there? Which has the greater total kinetic energy at the bottom?