t=2 s
Δv=70 km/h
Zakładamy ruch jednostajnie przyśpieszony
[tex]a=\frac{\Delta v}{t}[/tex]
[tex]\Delta \ v=70 \ \frac{km}{h}=70 \ \frac{1000 \ [m]}{3600 \ [s]}=19,(4) \ \frac{m}{s}[/tex]
[tex]a=\frac{\Delta v}{t}=\frac{19,(4) \ [\frac{m}{s}]}{2 \ [s]}=9,7(2) \ \frac{m}{s^2}[/tex]
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Verified answer
t=2 s
Δv=70 km/h
Zakładamy ruch jednostajnie przyśpieszony
[tex]a=\frac{\Delta v}{t}[/tex]
[tex]\Delta \ v=70 \ \frac{km}{h}=70 \ \frac{1000 \ [m]}{3600 \ [s]}=19,(4) \ \frac{m}{s}[/tex]
[tex]a=\frac{\Delta v}{t}=\frac{19,(4) \ [\frac{m}{s}]}{2 \ [s]}=9,7(2) \ \frac{m}{s^2}[/tex]