Consider a planet in some solar system which has a mass double the mass of Earth and same density as of Earth . What is the weight of object on the planet in terms of 'W' , where 'W' is weight of object on Earth
W=mg ... density = M / V . ... g=GM/R2
The Attempt at a Solution
since they both have same density..
i equated their M/V ratios and it gets me the ratio of their radii ..
but it still gets me nowhere