Odpowiedź:
m=500t=500 000kg
v=280km/h=280*1000m/3600s=77,8m/s
s=3,5km=3500m
s=v*t/2
t=2s/v
t=2*3500/77,8=90s
a=v/t
a=77,8/90=0,86m/s²
F=m*a
F=500 000kg*0,86m/s²
F=430 000N=430kN
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Odpowiedź:
m=500t=500 000kg
v=280km/h=280*1000m/3600s=77,8m/s
s=3,5km=3500m
s=v*t/2
t=2s/v
t=2*3500/77,8=90s
a=v/t
a=77,8/90=0,86m/s²
F=m*a
F=500 000kg*0,86m/s²
F=430 000N=430kN
Wyjaśnienie: