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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.

After launch, where does the block finally come to rest? Measure from the left end of the frictional zone.

作者: 么么哦 时间: 2013-4-8 02:02
弹簧力储存的势能减掉摩擦消耗的能量剩下的就是沿curve上升的高度所具有的势能

作者: gcoast 时间: 2013-4-8 23:07
模糊记忆

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