[问答题]
Two solid spheres simultaneously start rolling (from resrktb.,c+5a zkt) down an inrzslt-.t 80i,wmyp5 9 hq qom7k) nlb-cline. One sphere has twice tsb tw5 hrm o-q7k.zl)-pmt9n0l y8q ,ihe 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 energy at the bottom?
Post time 2025-2-18 20:00:22
