[问答题]
Two inclines have the same height but make diff 4 8 nwmo10awq3bahdn4erent angles with the horizhl -wqvosi(gco6-e *(ontal. T*eiw(vqhooc-(6gls- he same steel ball is rolled down each incline. On which incline will the speed of the ball at the bottom be greater? Explain.