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卫星环绕地球在椭圆轨道上运行的情景是近年高考的热点之一,那么,当卫星经过近地点和远地点时,应该用变轨运动还是圆周运动分析呢?这一问题因研究思路不同有以下两种回答.1环绕地球做变轨运动卫星环绕地球在椭圆轨道上运行的情景中,地球在椭圆的一个焦点上,星、地间距(卫星与地心间的距离)不断变化,在卫星由近地点向远地点运动过程,星、地间距不断增大,卫星做离心运
Satellites orbiting the Earth in elliptical orbit running scene is one of the hottest college entrance examination in recent years, then when the satellite passes near and apogee, should use orbit or circular motion analysis? This problem is due to different ways of thinking the following two Answer .1 orbit around the earth orbit Orbiting the Earth orbiting the Earth In the case of elliptical orbit, the Earth at a focal point of the ellipse, the distance between the star and the earth (the distance between the satellite and the earth’s center) is constantly changing, and when the satellite moves from the perigee to the apogee During the exercise, the distance between the star and the ground increases continuously, and the satellite does centrifugal transportation