a)12 min=12/60h=1/5h 3cm=0,00003 km v=s/t=0,00015 km/h b)6s=6/3600h=1/600h 5m=0,005km v=3km/h c)1/3600h 18cm=0,00018km v= 0,648km/h d)1/1800h 0,009km v= 16,2 e) 1/60 h v=26X60= 1 560 km/h
a) s = 3 cm t = 12 min v = s/t v = 3/12 cm/min = 3 x 0,00003km/1/60s = 0,00009 x 60 km/h = 0,0054 km/h b) s = 5 m t = 6s v = s/t v = 5/6 m/s = 0,005km x 6/3600h = 0,005 x 1/600 km/h = 0,005 x 600 km/h = = 3 km/h c) s = 18 cm t = 1 s v = s/t v = 18 cm/s = 18 x 0,00001km x 1/3600h = 0,00018 x 3600 km/h = 0,648 km/h d) s = 90 dm t = 2 s v = s/t v = 90/2 dm/s = 45 dm/s = 4,5 x 0,001km/1/3600h = 0,0045 x 3600 km/h = = 16,2 km/h e) s = 26 km t = 1 min v = s/t v = 26 km/min = 26km x 1/60h = 26 x 60 km/h = 1560 km/h
