[问答题]
Two inclines have the same heigg-x/7 5w*l dsjbvni e4ht busw;d6jueju,s l d2((vt make different angles with the horizontal. The same steel ball is rolled down each incw;eu6(jjsusd (2 v,d lline. On which incline will the speed of the ball at the bottom be greater? Explain.
Post time 2025-2-18 20:00:22
