Question

The radius of the moon is one-fourth and its mass is one eighty-first that of the earth. If the acceleration due to gravity on the surface of the earth is 9.8m/s², what is its value on the moon's surface? And show all your calculation please

Answer 1

$\frac{g( \frac{m}{80} )}{ { \frac{r}{4} }^{2} }$

= 1/5 g