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Δt = 5s
s = 50m
Szukane:
a = ?
Δv = ?
Wzory:
v średnia = 1/2 s/t a = Δv/Δt
v średnia = 1/2 × 50m : 5s
v średnia = 5 m/s
a = 5 m/s : 5s
a = 1 [m/s × 1/s]
a = 2 m/s²
Odp.: Przyspieszenie saneczkarza wynosi 2 m/s² .