For a planet having mass equal to mass of the earth but radius is one fourth of radius of the earth. Then escape velocity for this planet will be
$11.2$
$5.6$
$22.4$
$44.8$
For a planet having mass equal to mass of the earth but radius is one fourth of radius of the earth. Then escape velocity for this planet will be
${v_e} \propto \frac{1}{{\sqrt R }}$.
If $R$ becomes $\frac{1}{4}$ then ${v_e}$ will be $2$ times.
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