Question

Weight of an astronaut and his space suit on the Earth is $60kgf$ and $30kgf$ respectively. Their combined weight on the Moon will be:

• A. $15kgf$
• B. $10kgf$
• C. $5kgf$
• D. $20kgf$

Answer 1

The correct option is A

$15kgf$

Combined weight of astronaut and his space suit on Earth $=60+30=90kgf$

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.

$\therefore$ the combined weight of the astronaut and his space suit on Moon is $\frac{90}{6}=15kgf$