0.2kgm−20.2 \mathrm{kgm}^{-2}0.2kgm−2
0.2kgm20.2 \mathrm{kgm}^{2}0.2kgm2
0.2 kg2 m20.2 \mathrm{~kg}^{2} \mathrm{~m}^{2}0.2 kg2 m2
0.2kgm−10.2 \mathrm{kgm}^{-1}0.2kgm−1
