[问答题]
Two solid spheres simultaneoua( yjks+jp5tk3 9gln vzn,1(isly start rolling (bm wypyoje864 f e87f, uy,hk5from rest) down an incline. One sphere has twice the radius and twice the mass of the other. Which reaches the bottom of the incline first? Which has the greater speed there? Which ,eby8h y o54eu6f 78pwkmjy, fhas the greater total kinetic energy at the bottom?
Post time 2025-2-18 20:00:22
