特殊洛伦兹变换中力学量的巧妙变换

Smart Transformation of Mechanical Quantities about Special Lorentz Transformation

计算运动质点在∑系中的相对论因子uγ,通过特殊洛伦兹变换,得到∑′系的γu′,利用γu′将∑′系中的力学量表示成γu′的形式,可以很巧妙地将一些常用力学量,特别是非4维协变力学量,进行坐标变换.

The factor in special theory of relativity of the moving particle in reference frame is calculated. By the special Lorentz transformation,one can get the factor in reference frame,and by expressing the mechanical quantities in the form of in reference frame,one can transform some common mechanical quantities smartly,including non-convariant 4-demension mechanical quantities especially.