Question

A weather satellite in circular orbit around Earth completes one orbit every 5 hours. The radius of Earth is about 6,400 km and the satellite is positioned 4,700 km above the Earth. How far does the satellite travel in 1 hour? Round your answer to the nearest kilometer.

Answer 1

First we calculate radius of satellites orbit. it is:
R = 6400 + 4700 = 11 100 km

Now we need to calculate perimeter of its path.

P = 2*R*pi = 69473 km

Since satelite travels that distance in 5 hours that means that in 1 hour he will travel one fifth of it.

answer is 69473/5 = 13949 km