Escape velocity from earth is $11\mathrm{.}2k\frac{m}{s}.$ Another planet of same mass has radius $\frac{1}{4}$ times that of earth. What is the escape velocity

another planet?

$[$AIPMT $2000]$

A$)11\mathrm{.}2k\frac{m}{s}$

B$)44\mathrm{.}8k\frac{m}{s}$

C$)22\mathrm{.}4k\frac{m}{s}$

D$)5\mathrm{.}6k\frac{m}{s}$