[问答题]
Two inclines have the samel f ivb:in+i:hr:p 0z:eh/+yidn*4 mx height but make different s31s*hps9-mi.y p jf wangles with the horizontal. The same steel ball is rolled down each incline. On which incline will the speed of the ball at the bottom be greater? Expla13y- ss9isj *fmhp.wpin.