Odpowiedź :
Zad 1
72km/h+54/h=126km/h
Zad 2
54km/h=15m/s
a=delta v/delta t
a=4,5m/s / 3s = 1,5m/s2
delta t = delta v / a delta v = 15m/s - 4,5m/s = 11,5m/s
delta t = 11,5m/s / 1,5m/s2 = 7,6(6) s
3s + 7,6(6)s = 10,6(6)s.
72km/h+54/h=126km/h
Zad 2
54km/h=15m/s
a=delta v/delta t
a=4,5m/s / 3s = 1,5m/s2
delta t = delta v / a delta v = 15m/s - 4,5m/s = 11,5m/s
delta t = 11,5m/s / 1,5m/s2 = 7,6(6) s
3s + 7,6(6)s = 10,6(6)s.
Zad 1
72km/h+54/h=126km/h
Zad 2
54km/h=15m/s
a=delta v/delta t
a=4,5m/s / 3s = 1,5m/s2
3s + 7,6(6)s = 10,6(6)s.
72km/h+54/h=126km/h
Zad 2
54km/h=15m/s
a=delta v/delta t
a=4,5m/s / 3s = 1,5m/s2
3s + 7,6(6)s = 10,6(6)s.