Samochów osobowy w pewnej chwili mial szybkość 36 km/h a po 20 sekundach 108km/h. Oblicz wartość przyspieszenia.
v1 = 36km/h = 10m/s v2 = 108km/h = 30m/s
a = (v2 - v1)/t = (30-10)/20 = 1m/s2
ΔV=108km/h-36km/h=72km/h
72km/h=72*1000m/3600s=20m/s
t=20s
a=ΔV/t
a=20m/s/20s
a=1 m/s²
licze na naj ;d
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v1 = 36km/h = 10m/s v2 = 108km/h = 30m/s
a = (v2 - v1)/t = (30-10)/20 = 1m/s2
ΔV=108km/h-36km/h=72km/h
72km/h=72*1000m/3600s=20m/s
t=20s
a=ΔV/t
a=20m/s/20s
a=1 m/s²
licze na naj ;d