(u2cos2α2 g,u2sin2α2 g)\left(\frac{\mathrm{u}^{2} \cos ^{2} \alpha}{2 \mathrm{~g}}, \frac{\mathrm{u}^{2} \sin ^{2} \alpha}{2 \mathrm{~g}}\right)(2 gu2cos2α,2 gu2sin2α)
(u2sin2αg,u2sin2α2 g)\left(\frac{\mathrm{u}^{2} \sin ^{2} \alpha}{\mathrm{g}}, \frac{\mathrm{u}^{2} \sin ^{2} \alpha}{2 \mathrm{~g}}\right)(gu2sin2α,2 gu2sin2α)
(u2sin2α2 g,u2sin2α2 g)\left(\frac{{\mathrm{u}}^{2} \sin 2 \alpha}{2 \mathrm{~g}}, \frac{\mathrm{u}^{2} \sin ^{2} \alpha}{2 \mathrm{~g}}\right)(2 gu2sin2α,2 gu2sin2α)
(u2sinα2g,u2sin2α2g)\left(\frac{u^{2} \sin \alpha}{2 g}, \frac{u^{2} \sin ^{2} \alpha}{2 g}\right)(2gu2sinα,2gu2sin2α)