| Change log entry 50629 | |
|---|---|
| Processed by: | goldyn_chyld (2013-09-26 07:14:06 UTC) |
| Comment: |
<< review queue entry 49179 - submitted by 'richwarm' >> In the absence of air resistance, the only force on a projectile is its weight, and the mechanical energy of the projectile remains constant. 忽略空气阻力，作用在抛体上的力只是它的重量，因而该抛体的机械能是守恒的。 |
| Diff: |
+ 拋體 抛体 [pao1 ti3] /projectile/ |