(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

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

2. Relevant equations

W=mg ... density = M / V . .... g=GM/R^{2}

3. 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

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# Homework Help: Consider a planet in some solar system which has a mass double

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