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人造卫星绕地球运动问题,是高考的一个热点,解答涉及同步卫星的问题时,要运用“由空间向平面转化”的方法,即先将立体图形转化为平面图形,然后根据平面图形作分析处理问题,例1 2000年1月26日我国发射了一颗同步卫星,其定点位置与东经98°的经线在同一平面内,若把甘肃省嘉峪关处的经度和纬度近似取为东经98°和北纬α=40°,已知地球半径 R、地球自转周期 T、地球表面重力加速度
Satellite orbit around the earth is a hot issue in the college entrance examination. When solving problems involving geostationary satellites, the method of “transforming from space to plane” is used. That is, the three-dimensional graphics are first converted into planar graphics, and then the plane graphics are used as Analysis and treatment issues, Example 1 On January 26, 2000, China launched a geostationary satellite whose fixed point location is in the same plane as the longitude of the longitude 98°. If the longitude and latitude of the Jiayuguan Pass of Gansu Province are approximated as longitude 98° And latitude α = 40°, known Earth radius R, Earth rotation period T, Earth’s surface gravitational acceleration