[问答题]
Two inclines have the same height but make differen pu1/:f*)msjuuglt(eql 6 ;c vt angles wb5lxiibj mg2:mv*.nj0 +90 wyysgd4iith the horizontal. The same steel ball is rolled down each incline. On which incline will thejwgm+i4db g yii00y*sxn9 5 j.m v2lb: speed of the ball at the bottom be greater? Explain.
Post time 2025-2-18 20:00:22
