[问答题]
Two solid spheres siafv y3 s68vmiro .az/3t;egor6x g r3koc 835loups o(bbr+8 n: 6c0zfmultaneously start rolling (from 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 hbpunzr0o(:o b8f6+csas the greater speed there? Which has the greater total kinetic energy at the bottom?
Post time 2025-2-18 20:00:22
