The satellite, when moving around the Earth, describes a circle.

The satellite, when moving around the Earth, describes a circle. How is the instantaneous velocity of the satellite directed at any point of its trajectory?

When moving in a circle, the instantaneous speed of the body is always directed tangentially to the trajectory of motion.
Since the satellite describes a circle around the Earth, its speed at any point of the trajectory is directed tangentially to it. That is, perpendicular to the radius drawn from the center of the circle to the point at which the satellite is located.



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