1. V=d/t
337,3=1214,28/t
t=1214,28/337,33
t=3,55
2 .45kg c.v......................................37,5kg.c.p
x kg.c.v......................................75kg.cp
x=(2,45*75)/37,5
x=183,75/37,5
x=4,9
4, 5c..........................12t
6c..........................xt
x=(6*12)/5
x=14,4----- rotunjit 15
5. 12 h..............................75km/h
xh................................90km/h
x=(12*90)/75
x=14,4