Question

Please answer . its urgent.........I want explanation

Answer 1

Answer:

Acceleration due to gravity is because of gravity force

We know

$G = G \frac{mM}{ {r}^{2} } \\ mg = G \frac{Mm}{ {r}^{2} } \\ g = G\frac{M}{ {r}^{2} } = 10$

Now assume gravitational acceleration new planet is g' .

$g' = G\frac{ \frac{M}{5} }{ {( \frac{r}{2}) }^{2} } = \frac{4}{5} \times G \frac{M}{ {r}^{2} } = \frac{4}{5} \times 10 = 8 \: \frac{m}{ {s}^{2} }$

Answer 2

Answer:

8 m/s²

Explanation:

please refer to the image for solution