The acceleration due to gravity g on the earth is `9.8m//s^(2)`. What would be the value of g for a planet whose size is the same as that of earth and the density is twice that of earth?

Options

A. `19.6m//s^(2)`
B. `9.8m//s^(2)`
C. `4.9m//s^(2)`
D. `2.45m//s^(2)`

Answer

a

Explanation

`g_(1) prop rho_(1)" and "g_(2) prop rho_(2)`