Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable.
中英双语版:英文原文完整保留,中文紧随对应单元;术语采用 v20260916 确认表,自动语义审校结果可追溯。

Escape Velocity

逃逸速度
If the kinetic energy of an object launched from the Earth were equal in magnitude to the potential energy, then in the absence of friction resistance it could escape from the Earth.
Escape velocity from the Earth
脱离地球的逃逸速度
If M = MEarth
如果 M = M 地
中文译文中的待填/计算数值依次对应:1:mp。实际数值以上方原输入框为准。

and r = rEarth
且 r = r 地
中文译文中的待填/计算数值依次对应:1:rp。实际数值以上方原输入框为准。

then vescape = m/s
然后逃逸速度 v_escape = m/s
中文译文中的待填/计算数值依次对应:1:ve。实际数值以上方原输入框为准。

vescape =km/hr
vescape =mi/hr.

This data corresponds to a surface gravitational acceleration of

这些数据对应于表面引力加速度
g = m/s2
g = gEarth.
逃逸速度 = 公里/小时 逃逸速度 = 英里/小时。g = 米/秒² g = 地球的重力加速度。
中文译文中的待填/计算数值依次对应:1:vk 2:vc 3:sg 4:sge。实际数值以上方原输入框为准。
如果一个从地球发射的物体的动能在 magnitude 上等于势能,且在没有摩擦阻力的情况下,它就能脱离地球。
Orbit velocity and escape velocity
轨道速度与逃逸速度
Index

Energy concepts

Gravity concepts
索引 能的概念 重力概念
 
HyperPhysics***** Mechanics
力学
R Nave
Go Back
返回





Orbit Velocity and Escape Velocity

轨道速度与逃逸速度

If the kinetic energy of an object m1 launched from a planet of mass M2 were equal in magnitude to the potential energy, then in the absence of friction resistance it could escape from the planet. The escape velocity is given by

若物体 m₁ 从质量为 M₂ 的行星上发射,其动能等于势能,则在无摩擦阻力的情况下,它能够逃离行星。逃逸速度由下式给出

To find the orbit velocity for a circular orbit, you can set the gravitational force equal to the required centripetal force.

要找到圆轨道的轨道速度,可以将引力设为所需的向心力。

Note that the orbit velocity and the escape velocity from that radius are related by

注意,轨道速度与该半径处的逃逸速度之间存在关系
Index

Energy concepts

Gravity concepts
索引 能的概念 重力概念
 
HyperPhysics***** Mechanics
力学
R Nave
Go Back
返回