搜搜考试网这是一道A level的力学题
来源：学生作业帮 编辑：搜搜考试网作业帮 分类：英语作业 时间：2024/06/05 20:52:29
这是一道A level的力学题
A particle p of mass 0.4kg is attached to one end of a light elastic string of modulus of elasticity 24N and natural length 1.2m.the other end of the string is ficed to a point A on the smooth horizontal table on which P rests.Initially P is at rest with AP=1m.The particle receives an impulse of magnitude 1.8N s in the direction AP.
问.Calculate the time that elapses between the moment P receives the impulse and the net time the string becomes slack.
The particle comes to instantaneous rest for the first time at the point B.
问 Calculate the distance AB.
A particle p of mass 0.4kg is attached to one end of a light elastic string of modulus of elasticity 24N and natural length 1.2m.the other end of the string is ficed to a point A on the smooth horizontal table on which P rests.Initially P is at rest with AP=1m.The particle receives an impulse of magnitude 1.8N s in the direction AP.
问.Calculate the time that elapses between the moment P receives the impulse and the net time the string becomes slack.
The particle comes to instantaneous rest for the first time at the point B.
问 Calculate the distance AB.
郑强来学校做讲座啦,我先去听,这题写到一半晚上再来~你是高中生是吧~那个英语原版题我做的不多这里in the direction AP.是指矢量AP的方向对吧~其实就是一个简谐振动平衡点移动一下的问题~
回来啦,郑强老兄讲了4个多小时~虽然很想睡,但是打算做的事就该做好不是吗,解答在下面的图上,你参考一下~可以再讨论讨论~
回来啦,郑强老兄讲了4个多小时~虽然很想睡,但是打算做的事就该做好不是吗,解答在下面的图上,你参考一下~可以再讨论讨论~