万有引力、支持力、重力、向心力在赤道上的物体有 GMm/R^2 - N = m*v^2/R可是万有引力GMm/R^2,向心力m*v^2/R代数字进去算是相等的,那N等于多少?在赤道上示重N还是重力呀.这么算不是等于0了么?帮
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![万有引力、支持力、重力、向心力在赤道上的物体有 GMm/R^2 - N = m*v^2/R可是万有引力GMm/R^2,向心力m*v^2/R代数字进去算是相等的,那N等于多少?在赤道上示重N还是重力呀.这么算不是等于0了么?帮](/uploads/image/z/528164-44-4.jpg?t=%E4%B8%87%E6%9C%89%E5%BC%95%E5%8A%9B%E3%80%81%E6%94%AF%E6%8C%81%E5%8A%9B%E3%80%81%E9%87%8D%E5%8A%9B%E3%80%81%E5%90%91%E5%BF%83%E5%8A%9B%E5%9C%A8%E8%B5%A4%E9%81%93%E4%B8%8A%E7%9A%84%E7%89%A9%E4%BD%93%E6%9C%89+GMm%2FR%5E2+-+N+%3D+m%2Av%5E2%2FR%E5%8F%AF%E6%98%AF%E4%B8%87%E6%9C%89%E5%BC%95%E5%8A%9BGMm%2FR%5E2%2C%E5%90%91%E5%BF%83%E5%8A%9Bm%2Av%5E2%2FR%E4%BB%A3%E6%95%B0%E5%AD%97%E8%BF%9B%E5%8E%BB%E7%AE%97%E6%98%AF%E7%9B%B8%E7%AD%89%E7%9A%84%2C%E9%82%A3N%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91%3F%E5%9C%A8%E8%B5%A4%E9%81%93%E4%B8%8A%E7%A4%BA%E9%87%8DN%E8%BF%98%E6%98%AF%E9%87%8D%E5%8A%9B%E5%91%80.%E8%BF%99%E4%B9%88%E7%AE%97%E4%B8%8D%E6%98%AF%E7%AD%89%E4%BA%8E0%E4%BA%86%E4%B9%88%3F%E5%B8%AE)
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