how to adjust the mass of any object in solidworks?
Are you looking to retroactively assign a mass to a part? You can fudge it in the BOM for quick and dirty. I noticed you haven't assigned a material to the part you have attached. In that regard, you could assign any number of materials of varying densities to your part. Aluminium will have a total mass less than that of stainless which is less than that of uranium, etc.Are you shooting for something more exotic? You can add custom materials to the SW database if they aren't in there. Perhaps someone has a more extensive database?