[问答题]
Two inclines have thevvm;owhy. n j otm8 )z6wx8x77 same c* jzple)fbnodnq2y 6.; pf((height but make different angles with the horizontal. The same steel ball is rolled down each incline. On which incline wi 2fcj).poqp;dy(nn*zlfe 6(b ll the speed of the ball at the bottom be greater? Explain.