Question

An imaginary planet has a mass 5 times and radius 3 times that of earth. What is the acceleration due to gravity on the planet, If the acceleration due to gravity on earth in 10m/s2

Answer 1

R=3r,M=5m,
g= GM /R^2
g=G * 5m/9r^2
$g = 6.67 \times {10}^{ - 11} \times (5 \times m) \times 9 {r}^{2}$


Solve it you will get the answer.

Answer 2

Answer:

5.56 m/s^2

Explanation:

We know that, g = GM/ R2

Therefore, g' (acceleration due to gravity of imaginary planet) = G (5 M)/(3R)2

or, g' = 5GM/ 9R2

or, g' = (5/9)g = 5.6 m/s2