50 kg m250 \mathrm{~kg} \mathrm{~m}^{2}50 kg m2
50 kg m50 \ kg \ m50 kg m
2.5 kg m22.5 \mathrm{~kg} \mathrm{~m}^{2}2.5 kg m2
2.58 kg m2.58 \mathrm{~kg} \mathrm{~m}2.58 kg m