标题: 各位擅长物理的受累帮忙看看！非常谢谢 [打印本页] 作者: Tomliu 时间: 2013-4-8 01:11 标题: 各位擅长物理的受累帮忙看看！非常谢谢 A 194 block is launched by compressing a spring of constant 200 a distance of 15 . The spring is mounted horizontally, and the surface directly under it is frictionless. But beyond the equilibrium position of the spring end, the surface has coefficient of friction . This frictional surface extends 85 , followed by a frictionless curved rise, as shown in the figure.
