首页Home › 科学与工程Science & Engineering
🎡 向心力计算器Centripetal Force Calculator
由质量、半径和线速度（或角速度、转速）计算圆周运动的向心力 F = mv²/r 和向心加速度，并换算成重力加速度的倍数（g 值）。Calculate the centripetal force F = mv²/r and centripetal acceleration of circular motion from mass, radius and linear speed (or angular speed or rpm), with the acceleration in g.
使用说明与常见问题How-to & FAQ
「向心力计算器」是什么？What is the Centripetal Force Calculator tool?
由质量、半径和线速度（或角速度、转速）计算圆周运动的向心力 F = mv²/r 和向心加速度，并换算成重力加速度的倍数（g 值）。Calculate the centripetal force F = mv²/r and centripetal acceleration of circular motion from mass, radius and linear speed (or angular speed or rpm), with the acceleration in g.
如何使用「向心力计算器」？How do I use the Centripetal Force Calculator tool?
在「向心力计算器」中，填写「质量 kg」、「半径 m」、「速度类型」、「速度数值」等参数，结果会随输入实时计算并显示在下方。In the Centripetal Force Calculator: Fill in "Mass kg", "Radius m", "Speed given as", "Speed value"; results are recalculated instantly as you type.
用的是哪些公式？What are the formulas?
F = m·v²/r = m·ω²·r，a = v²/r。ω（rad/s）= v/r = 2π × rpm ÷ 60。F = m·v²/r = m·ω²·r and a = v²/r, with ω (rad/s) = v/r = 2π × rpm ÷ 60.
向心力和离心力是一回事吗？Is it the same as centrifugal force?
向心力是指向圆心的真实合力（例如绳子拉力、摩擦力）。离心力是在旋转参考系里出现的惯性力，大小相同、方向相反。Centripetal force is the real net force toward the centre, such as tension or friction. Centrifugal force is the inertial force that appears in the rotating frame, equal and opposite.
计算结果可以用于作业或工程吗？Can I use the results for homework or engineering?
「向心力计算器」使用教科书标准公式（公式写在说明和常见问题中），适合学习和估算核对；涉及安全的工程设计请以规范和实测为准。The Centripetal Force Calculator uses standard textbook formulas (given in the description and FAQ), which is good for learning and checking estimates; for safety-critical engineering follow codes and measured values.
「向心力计算器」免费吗？需要注册吗？Is the Centripetal Force Calculator free? Do I need an account?
「向心力计算器」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Centripetal Force Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.