| 单词 | momentum |
| 释义 | momentum [mō`ment·ǝm] MECHANICS 1. Also known as linear momentum; vector momentum. 2. For a single nonrelativistic particle, the product of the mass and the velocity of a particle. 3. For a single relativistic particle, mv /(1-v2/c2)1/2, where m is the rest-mass, v the velocity, and c the speed of light. 4. For a system of particles, the vector sum of the momenta (as in the first or second definition) of the particles. |
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