7.215m/detik=….km/jam
8.300m/menit=…km/jam
9.460hm/jam=….m/menit
10.900dm/menit=…km/jam
6.40hm/jam=…m/detik
6.40X100=4.000m/jam=4.000:3.600=1,1 m/detik
7.215:1.000=0,215km/detik=0,215X3.600=774km/jam
8.300:1000=0,3km/menit=0,3X60=16km/jam
9.460X100=4.6000m/jam=46000:60=766,6m/menit
10.900:10.000=0,09km/menit=X60=5,4km/jam
maaf kalo salah ya…… :):):)