Question

What is the value of g on the surface of sun?

Mass of sun$=1.99\times {10}^{30}kg$

Radius of sun $=6.96\times {10}^{8}m$

Answer 1

Step 1: Given data and assumptions made:

Mass of the Sun $\left(M\right)=1.99\times {10}^{30}kg$

The radius of the Sun $\left(R\right)=6.96\times {10}^{8}m$

Gravitation constant $\left(G\right)=6.67\times {10}^{-11}N{m}^2/k{g}^2$

Step 2: Finding the value of acceleration due to gravity $\left(g\right)$:

Formula used : $g=\frac{GM}{R^2}$

substituting the given values we get,

$$\begin{gathered} g=\frac{6.67\times {10}^{-11}\times 1.99\times {10}^{30}}{{(6.96\times {10}^8)}^2} \\ g=274.006m/s^2 \end{gathered}$$

Therefore the value of $g$ on sun is $274.0m/s^2$.