[问答题]
Two inclines have the same height qjuhf 94u7slz gc/46 hbut maw3bzrp h1 keihok;b84ryl )ti ,iw3(7ke different angles with the horizontal. The same steel ball is rolled down each incline. On whtwhh3ieokz1b (kr734br;l w ),p iiy8 ich incline will the speed of the ball at the bottom be greater? Explain.