[问答题]
Two solid spheres simultane l lhxnh/+qyu1)7bv s+ously start rolling (from rest)4bk pe6 m2i9qb 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 92 i6b4bqempk greater speed there? Which has the greater total kinetic energy at the bottom?
Post time 2025-2-18 20:00:22
