kepler's second law formula
kepler's second law formula
发布时间：2025-07-13 10:47:44
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由 题搜搜 官方老师解答 )
答案：Kepler's second law, also known as the law of areas, states that a line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time. The formula for this law is not typically expressed in a simple algebraic form, but it can be described mathematically as:
\[ \frac{dA}{dt} = \frac{1}{2} r^2 \frac{d\theta}{dt} = \text{constant} \]
where \( dA \) is the infinitesimal area swept out, \( r \) is the distance from the planet to the Sun, \( \theta \) is the angle swept out, and \( \frac{d\theta}{dt} \) is the angular velocity.
