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a=15m/s:5s=3m/s2
v1 = 5m/s
v2 = 20m/s
t = 5s
Rozwiązanie :
a = Δv/Δt
a = v późniejsze - v wcześniejsze / Δt
a = 20m/s - 5 m/s / 5s
a = 15m/s / 5s
a = 3m/s²
15m/s : 5s = 3m/s²