Physics

Problem

At a certain altitude above a small asteroid, the escape velocity is

5.0\,\text{km s}^{-1}

. What is the speed of a satellite in a circular orbit at this altitude? a)

7.1\,\text{km s}^{-1}

5.0\,\text{km s}^{-1}

3.5\,\text{km s}^{-1}

2.5\,\text{km s}^{-1}