A planet has mass

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

A planet has mass 4.0×1023 kg4.0\times10^{23}\,\text{kg}. If the acceleration due to gravity at its surface is 3.7 m s−23.7\,\text{m\,s}^{-2}, determine the planet’s radius. (a) 5.4×106 m5.4\times10^{6}\,\text{m} (b) 2.7×106 m2.7\times10^{6}\,\text{m} (c) 8.2×106 m8.2\times10^{6}\,\text{m} (d) 1.3×106 m1.3\times10^{6}\,\text{m}

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