[问答题]
Two inclines have the same height but make difd,obe53d 5at6qe7)v t gs;rhfferent angles wic8ym(. d lti6ith the horizontal. The same tim il( y68dc.steel ball is rolled down each incline. On which incline will the speed of the ball at the bottom be greater? Explain.
Post time 2025-2-18 20:00:22
