p=k22mp=\frac{k^{2}}{2 m}p=2mk2
k=2 mpm\mathrm{k}=\frac{2 \mathrm{~m}}{\mathrm{pm}}k=pm2 m
k=p22mk=\frac{p^{2}}{2 m}k=2mp2
p=2 mk2\mathrm{p}=\frac{2 \mathrm{~m}}{\mathrm{k}^{2}}p=k22 m