A satellite 300 miles above the city in a circular orbit about the Earth is directly over a particular city at time t=0. It is traveling eastward at 16,000 mph. At the same time, a small rock very near the satellite is released from rest 300 miles above the city. How does the acceleration of the rock compare to that of the satellite in both magnitude AND direction? Explain.

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!