[问答题]
Two inclines have the same he+wg1 cfctoiha4) ia )(ight but make differbi70mj7oxca;u m 5eqwk8 b8z*ss )*o zent angles 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 grz5*kuz) * i8s 0c7amsb7bo8q jmx;ewoeater? Explain.