Question

A satellite is orbiting Earth in an approximately circular path. It completes one revolution each day (86,400 seconds). Its orbital distance is 22,500 kilometers from the Earth's center. What is the satellite's average speed?

Answer 1

5,890 miles per hour

Step-by-step explanation:

Answer 2

For each revolution, the satellite covers the circumference
of its orbit.

The circumference of a circle is (pi) x (diameter).

Since the satellite is 22,500 miles from the center, that number
is the radius of the circle. The diameter is 45,000 miles.

The circumference is (pi) x (45,000 miles) = 141,372 miles

The satellite's average speed is 141,372 miles per day, or

(141,372 / 24) = 5,890 miles per hour

relative to the center of the Earth.