[问答题]
Two solid spheres simulti82o6 ye9 2x*rx 2jnhk1cc yqqaneously start r6 xnhqzz1oia 6rl3m c3(2 8uxqolling (from rest) down an incline. One sphere has twice the radius and twice the mass( 8rxm2xh 3zq l16aizc n6ou3q 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
