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第一宇宙速度的推导
第一宇宙速度的推导
2025-03-15 11:13:22
推荐回答（1个）
回答1：
第一宇宙速度就是等于物体在地球表面附近运动的环绕速度。 由于万有引力提供向心力，而认为万有引力等于重力，所以 F向＝mg＝m V^2 / R 得第一宇宙速度是 V＝根号（g R）
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