作者pobm (气吞万里如虎)
看板TransPhys
标题[力学] 一题张力的
时间Sun Jul 30 13:38:38 2006
A rope wraps an angle θ around a pole. You grab one end and pull with a
tension T . The other end is attached to a large object, say, a boat. If
the coefficient of static friction between the rope and the pole is μ,
what is the largest force the rope can exert on the boat, if the rope is
not to slip around the pole?
它是说有个绳子以θ角缠在竿上?????(这是怎麽缠的阿)
你用T的力抓住绳子的一端
绳的另一端缠在一艘船上
如果绳子和竿间的静摩擦系数是μ
绳子能拉船的最大力为?
设绳子在竿上没有滑动
题目是这样对吧
可是他第一句我就不太懂了
请知道的大大能告诉我
谢谢^^
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※ 编辑: pobm 来自: 140.122.189.169 (07/30 13:39)