u22 g\frac{\mathrm{u}^{2}}{2 \mathrm{~g}}2 gu2
u22 g\frac{\mathrm{u}^{2}}{\sqrt{2 \mathrm{~g}}}2 gu2
(u/g)2(u / \sqrt{g})^{2}(u/g)2
None of these \text { None of these } None of these