Weight on earth and Venus?

Question

You weight 625 N on earth. What would you weight on Venus? Venus' mass is 4.88 x 10^24 kg and it has a radius of 6.07 x 10^6 m.

Answer 1

Gravitational force on object of mass m:

GMm/r² = mg

so

g = GM/r²

where
G=6.67*10^(-11) m³/kg-s² is the gravitational constant
M (kg) is mass of planet
r (m) is the radius of the planet
g (m/s²) is planet's acceleration due to gravity

On earth, g=9.8 m/s² so person's mass is 625/9.8 kg