単位



計算をするために
1m = 3.28084ft1ft = 0.30480m
1m = 1.09361yd1yd = 0.9144m
1cm = 0.39370inch1inch = 2.54000cm
1km = 0.62137mile1mile = 1.60934m
1m2 = 1.19599yd21yd2 = 0.83613m2
1g = 0.035274oz1oz = 28.350g
1kg = 2.20462lb1lb = 0.45359kg

1mm = 0.1cm1cm = 10mm
1cm = 0.01m1m = 100cm
1m = 0.001km1km = 1000m
1cm2 = 0.0001cm21m2 = 10000cm2
1g = 0.001kg1kg = 1000g

1inch = 1/12ft1ft = 12inch
1ft = 1/3yd1yd = 3ft
1oz = 1/16lb1lb = 16oz




    
ペットボトルロケットについて何かヒントがありましたら教えてください。

tsshiba@st.rim.or.jp