mvTt\frac{\mathrm{mv} T}{\mathrm{t}}tmvT
12mv2t\frac{1}{2} \frac{m v^{2}}{t}21tmv2
12mv2T2t2\frac{1}{2} \frac{m v^{2} T^{2}}{t^{2}}21t2mv2T2
2−1mv2Tt22^{-1} \frac{m v^{2} T}{t^{2}}2−1t2mv2T