Jaka siła musi działać na samochód o masie 1800kg aby w ciągu 0,5 minuty rozpędzić go do 144 km/h.
m=1800 kg
t=0,5 minuty=30s
Vo=0 km/h
Vk=144 km/h
ΔV=Vk-Vo=144 km/h= 144000:3600 m/s = 40 m/s
a= ΔV:t=40:30=1,333 m/s²
F=ma= 1800 razy 1,333=2400 N
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m=1800 kg
t=0,5 minuty=30s
Vo=0 km/h
Vk=144 km/h
ΔV=Vk-Vo=144 km/h= 144000:3600 m/s = 40 m/s
a= ΔV:t=40:30=1,333 m/s²
F=ma= 1800 razy 1,333=2400 N