Answer
The escape speed on Mars is $~~5.0~m/s$
Work Step by Step
We can find the radius of Mars:
$R = \frac{6.9\times 10^3~km}{2} = 3.45\times 10^3~km$
We can find the mass of Mars:
$M = (0.11)(5.98\times 10^{24}~kg) = 6.58\times 10^{23}~kg$
We can find the escape speed on Mars:
$v = \sqrt{\frac{2GM}{R}}$
$v = \sqrt{\frac{(2)(6.67\times 10^{-11}~N~m^2/kg^2)(6.58\times 10^{23}~kg)}{3.45\times 10^6~m}}$
$v = 5.0~m/s$
The escape speed on Mars is $~~5.0~m/s$
