Imagine that four identical satellites of the Earth are launched from the cosmodrome located at the equator to the same height

Imagine that four identical satellites of the Earth are launched from the cosmodrome located at the equator to the same height: to the north, south, west, and east. In this case, each subsequent satellite was launched in 1 min. after the previous one. Will satellites collide in flight? Which one was easier to launch? Consider orbits circular

Satellites launched along the equator will collide, and those that launch to the north and south cannot collide, since they will rotate in different planes, the angle between which is equal to the angle of rotation of the Earth in 1 min In the direction of the Earth’s rotation, i.e. to the east, the satellite is easier to launch because it uses the speed of the Earth’s rotation in addition to the speed imparted by the launch vehicle. The most difficult thing is to launch the satellite to the west.

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