Weight of an astronaut and his space suit on the Earth is 60 kgf and 30 kgf respectively. Their combined weight on the Moon will be:
15 kgf
Combined weight of astronaut and his space suit on Earth =60+30=90 kgf
Since, Moon's gravity is one-sixth of that of the Earth, the weight of the object on Moon is one-sixth of that on the Earth.
∴ the combined weight of the astronaut and his space suit on Moon is 906=15 kgf