[问答题]
A sphere and a cylinde nonnc 5p6p;)dr have the same radius and the same mass. They stai3ilcjk/ (ze0rt from rest at the top of an incline. Which reachesie30zlk /(i cj the bottom first? Which has the greater speed at the bottom? Which has the greater total kinetic energy at the bottom? Which has the greater rotational KE?