[问答题]
Two solid spheres simultaneously start 17;v,qafmg s9vzj p9mrolling (from rest) down an ino qjwvf(p 46la c ,5cmsp7v,3b-eg(upcline. 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 has the greater total kinetic 4 ppcocq-3sv6w b,l(jg, vpa7 5e(fumenergy at the bottom?
Post time 2025-2-18 20:00:22
