Physics

Problem

A planet has mass

4.0\times10^{23}\,\text{kg}

. If the acceleration due to gravity at its surface is

3.7\,\text{m\,s}^{-2}

, determine the planet’s radius. a)

5.4\times10^{6}\,\text{m}

2.7\times10^{6}\,\text{m}

8.2\times10^{6}\,\text{m}

1.3\times10^{6}\,\text{m}