本文从爱因斯坦速度变换式、相对论中的牛顿第二定律及普遍的能量守恒定律导出质点组的动量守恒定律。

In this paper, the conservation law of momentum is derived from Einstein's transformation law of velocities, Newton's second law in relativity and general conservation law of energy.

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本文首先对加速度和力进行了狭义相对论变换，然后研究了加速度和力在不同惯性坐标系中的性质。

We, in this paper, first of all, transformed acceleration and force of special relativity, then further studied acceleration and force property under different inertial ordinate system.

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