[问答题]
Two inclines have the same height but make differe0 bv* ih yintk0,; ue16umgwp0nt angles with td oar3 z37wdz -vuincld8(v1+he horizontal. The same steel ball is rolled down each incline. On which incline will d- 7dod1zrvali v8 zc(w+33 nuthe speed of the ball at the bottom be greater? Explain.