Odpowiedź :
[tex]Dane:\\ v=700\frac{m}{s}\\ s=70cm=0,7m\\ Oblicz:\\ t=?\\ a=?\\ Rozwiazanie:\\ s=\frac{vt}{2}\Rightarrow t=\frac{2s}{v}\\\\ t=\frac{2*0,7}{700}\\\\ t=\frac{1,4}{700}\\\\ t=0,002s=2ms\\\\ a=\frac{v}{t}\\\\ a=\frac{700}{0,002}\\\\ a=350000\frac{m}{s^2}[/tex]
v = 700m/s
s = 70cm = 0,7m
s = 0,5vt => t = 2s/v
t = 2*0,7m/700m/s = 0,002s
a = Δv/t
a = 700m/s / 0,002s = 350 000m/s²
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