Dane:V = 36km/h = 36 * 1000/3600 m/s = 10m/st = 18sSzukane:s = ?a = v/ta = 10m/s / 18sa = 5/9 m/s²s = at²/2s = 5/9m/s² * 324s² / 2s = 180m / 2s = 90m --> tyle wyniosła droga hamowania
dane:
Vo=36km/h
t=18s
szuk:
s
roz.:
s= vot-atkwadrat/2
a=v/t
a=36km/h:18s=36*1000m:3600s:18s=0,55m?s' kwadrat
s=10m/s*18s-(0,55m/s'kwadrat*(18s)'kwadrat):2=180m-89,1m=90,9m-droga hamowania
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Dane:
V = 36km/h = 36 * 1000/3600 m/s = 10m/s
t = 18s
Szukane:
s = ?
a = v/t
a = 10m/s / 18s
a = 5/9 m/s²
s = at²/2
s = 5/9m/s² * 324s² / 2
s = 180m / 2
s = 90m --> tyle wyniosła droga hamowania
dane:
Vo=36km/h
t=18s
szuk:
s
roz.:
s= vot-atkwadrat/2
a=v/t
a=36km/h:18s=36*1000m:3600s:18s=0,55m?s' kwadrat
s=10m/s*18s-(0,55m/s'kwadrat*(18s)'kwadrat):2=180m-89,1m=90,9m-droga hamowania