1.Dane: h=s=80m g=a=10m/s^2 Oblicz: t=? Rozwiązanie: [latex]s=frac{at^2}{2}[/latex] [latex]2s=at^2=>t^2=frac{2s}{a}[/latex] [latex]t^2=frac{2*80}{10}[/latex] [latex]t^2=frac{160}{10}[/latex] [latex]t^2=16[/latex] [latex]t=sqrt{16}=4s[/latex] 2.Dane: t=4s g=a=10m/s^2 Oblicz: s=? Rozwiązanie: [latex]s=frac{at^2}{2}[/latex] [latex]s=frac{10*4^2}{2}[/latex] [latex]s=frac{10*16}{2}[/latex] [latex]s=frac{160}{2}[/latex] [latex]s=80m[/latex]
1. dane: h = 80 m g = 10 m/s² szukane: t = ? v = ? h = gt²/2 I*2 gt² = 2h /:g t² = 2h/g t = √(2h/g) = √(2*80m/10m/s²) = √(16s²) = 4 s t = 4 s ===== v = gt v = 10m/s²*4s = 40 m/s v = 40 m/s ======= 2. dane: t = 4 s g = 10 m/s² szukane: h = ? h = gt²/2 h = 10m/s²*(4s)²/2 = 5*16 m = 80 m h = 80 m ======
