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t 0 4 8 12 16 20
v (km/h) 0 18 36 52 72 90
v (m/s) 0 5 10 15 20 25
2.
A. Wykres 1
B. 1,25m/s² (5m/s - 0) / (4s - 0) = (5m/s) /4s = 1,25 m/s²
C. Δv = 5m/s
D. 12,5 m/s v = a ·t =1,25m/s² · 10s = 12,5m/s