200分求)大一物理题,因为是英语版的,呵呵
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200分求)大一物理题,因为是英语版的,呵呵
The particles each of mass m and speed v,travel in opposite directions along parallel lines separated by a angular,The total angular momentum of the system about any origin is_______.
翻译一下也可以,
The particles each of mass m and speed v,travel in opposite directions along parallel lines separated by a angular,The total angular momentum of the system about any origin is_______.
翻译一下也可以,
![200分求)大一物理题,因为是英语版的,呵呵](/uploads/image/z/3048284-20-4.jpg?t=200%E5%88%86%E6%B1%82%EF%BC%89%E5%A4%A7%E4%B8%80%E7%89%A9%E7%90%86%E9%A2%98%2C%E5%9B%A0%E4%B8%BA%E6%98%AF%E8%8B%B1%E8%AF%AD%E7%89%88%E7%9A%84%2C%E5%91%B5%E5%91%B5)
fill in the blank: mvd.
两个质量为m速度为v的粒子沿着被某角度分开的平行线做相反方向的运动.角动量总值在任何原始出发点(都相等)
let the point be (x,y)
angular momentum of first particle = mvr1sin@ = mvp
angular momentum of second particle = mvr2sin@ = mvq
net angular momentum ( the angular momenta are in the same direction) = mvp+mvq =mvd (constant and independent of x and y)
![](http://img.wesiedu.com/upload/8/1e/81ef46fd5a73a7379930ba8f7eed256d.jpg)
两个质量为m速度为v的粒子沿着被某角度分开的平行线做相反方向的运动.角动量总值在任何原始出发点(都相等)
let the point be (x,y)
angular momentum of first particle = mvr1sin@ = mvp
angular momentum of second particle = mvr2sin@ = mvq
net angular momentum ( the angular momenta are in the same direction) = mvp+mvq =mvd (constant and independent of x and y)
![](http://img.wesiedu.com/upload/8/1e/81ef46fd5a73a7379930ba8f7eed256d.jpg)