" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
s2 = 9km
t1 = 1h
t2 = 2h
v = s/t
s = s1+s2
t = t1+t2
vśr = (s1+s2)/3h = (6km+9km) / 3h = 15km/3h = 5km/h