“2021年IOAA理论第11题-抛射体的最小速度”的版本间的差异
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Jingsong Guo（讨论 | 贡献） （以“==英文题目== . ==中文翻译== ==解答==”替换内容） （1个标签：替换） |
Jingsong Guo（讨论 | 贡献） |
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==英文题目== | ==英文题目== | ||
| + | '''Minimum velocity of a projectile (15 points).''' | ||
| − | . | + | 11.1 What is the minimum speed with which a projectile must be launched from the |
| + | Earth's surface at the equator such that the projectile reaches the north pole? | ||
| + | <p style="text-align:right">12.0pt</p> | ||
| + | |||
| + | 11.2 Find the eccentricity of the trajectory described by the projectile. <p style="text-align:right">3.0pt</p> | ||
| + | |||
| + | You may ignore the rotation of the Earth. Also assume the earth surface is spherical. | ||
| + | Reference | ||
==中文翻译== | ==中文翻译== | ||
==解答== | ==解答== | ||
2022年3月9日 (三) 22:12的版本
英文题目
Minimum velocity of a projectile (15 points).
11.1 What is the minimum speed with which a projectile must be launched from the Earth's surface at the equator such that the projectile reaches the north pole?
12.0pt
11.2 Find the eccentricity of the trajectory described by the projectile.
3.0pt
You may ignore the rotation of the Earth. Also assume the earth surface is spherical. Reference
