How does increasing the mass of heavy and light objects affect their terminal velocity in viscous and inertial drag?
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$\begingroup$ -1. No research effort. You could at least look at the wikipedia article on terminal velocity. $\endgroup$– sammy gerbilNov 1, 2017 at 8:45
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Drag is a force that acts on the object in the opposite direction of the objects motion. Drag increases with velocity (e.g. pressure drag $F_R \propto v^2$), hence, all else being equal, F is larger for a more massive object undergoing uniform acceleration so it has a higher terminal velocity (where $\mathbf F = -\mathbf F_R$).
