[问答题]
Two inclines have the s j.x(fm vd8snarse,5 7ame height but make diffk6-g v a x((s7s,fwvqaerent angles with the horizontal. The same steel ball is rolled down each incline. On which incline will the speed of the ball at th - w(xg,faaq(v7sksv 6e bottom be greater? Explain.
Post time 2025-2-18 20:00:22
