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dane :
v= 72 km/m = 72000m/3600 = 20 m/s
t= 1 min = 60 s
S
a=Δv/Δt
a=20/60 m/s
a=0,33[m/s²]
b) S =½ a * f²
S=0,33/2 * 60
s ⅙ * 10 *60 =600
s= 10 m