What disturbes me most about this is him/her confusing gravitational force and weight, thus deviding mass (kg) through acceleration (m/s^2) an expecting to recieve mass(kg) once again.
So his result should be off by a factor of ~10,
if the rest of his calculations and conversions are correct.
So his result should be off by a factor of ~10,
if the rest of his calculations and conversions are correct.