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一、正常轨道的运转问题卫星在圆轨道或椭圆轨道上运行,应用开普勒三个定律及万有引力定律来解答问题,涉及到速度、周期、角速度的计算等问题.事例2“嫦娥一号”进入绕地椭圆轨道后,椭圆的一个焦点是地球的球心,如图1所示.在无动力的飘移阶段可以认为卫星只受到地球对它的万有引力的作用,在飞船从轨道的A点沿箭头方向运行到B点的过程中A.飞船的速度逐渐增大B.飞船的速度逐渐减小
First, the orbit of the normal operation of the satellite Orbital orbit in the circular orbit, the application of Kepler’s three laws and the law of universal gravitation to answer the question involves the calculation of speed, period, angular velocity and other issues. "2 Chang’e After entering elliptical orbit, one of the focal points of the ellipse is the center of the Earth’s sphere, as shown in Figure 1. In the unpowered phase of migration, it is assumed that the satellite is only under the universal gravitation of the Earth, Point in the direction of the arrow to the point B in the process A. The speed of the spacecraft gradually increased B. The speed of the spacecraft gradually reduced