[问答题]
Two inclines have the samcn7-.dih 2wnie height but make diffe1bwg(iaey4s 4rent angles with the horizontal. The same steel y4bg 1sa4wi( eball 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
