[问答题]
Two inclines have the samev c, 6w)5lglv f2 ifl is80t+ihblb-/h height but make different angles with th*xmr eb: uv. f 7zzv r)z3/a)n81dpsvhe horizontal. The same steel ball is rolled down eacx 1/3 fu*vzzrvmezh r a)bnv). dps:78h incline. On which incline will the speed of the ball at the bottom be greater? Explain.
Post time 2025-2-18 20:00:22
