We are interested in determining the amount of linear momentum delivered to the electron by the field . 我们对确定场传递给电子的线性动量的大小感兴趣。
In other words, the vertical component of its linear momentum remains zero, since there is no resultant vertical force . 换句话说,因为没有竖直方向的合力,所以线动量的竖直方向仍为零。
Principle of linear momentum 线性动量定理
This should obviously violate the laws of conservation of linear momentum and energy 很显然,这违反了线性动量和能量守恒定律。
In motions of rotation angular momentum appears in much the same way as linear momentum appears in motion of translation 在旋转运动中的角动量产生的方式与平移运动中的线动量的产生是基本相似的。