Planet A has mass and radius

PHYSICS · Subjective · CBSE · Physics · Gravitation · Gravitation

Problem

Planet A has mass

2.0\times10^{24}\,\text{kg}

and radius

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

. Planet B has mass

4.0\times10^{24}\,\text{kg}

and radius

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

. Determine which planet has the larger escape speed and calculate the ratio

v_{\text{esc,B}}/v_{\text{esc,A}}