[问答题]
Two inclines have th7jz5oop0/a ); k/zufdt d7bqg )ss.mi7fs-rel6cwd; e same height but make different angles with the horizontal. The same steel ball is rolled down each incline. On which incline will the speed of the ball at the bottom be g -f7 r6wecld;sreater? Explain.
Post time 2025-2-18 20:00:22
