Odpowiedź:
Obliczam szybkość Evandro Portela
s=1122dm=112,2m=0,1122km
t=2s= [tex]\frac{2}{3600} h=\frac{1}{1800} h[/tex]
[tex]v=\frac{s}{t} =\frac{0,1122}{\frac{1}{1800} } =0,1122*\frac{1800}{1} =201,96\frac{km}{h}[/tex]
bądź najpierw obliczamy w m/s i potem zamieniamy na km/h
[tex]v=\frac{s}{t} =\frac{112,2}{2} =56,1\frac{m}{s}[/tex]
[tex]56,1\frac{m}{s} =56,1\frac{0,001km}{\frac{1}{3600}h } =56,1*3,6\frac{km}{h} =201,96\frac{km}{h}[/tex]
Dystans w ciągu s E P-Edvandro Portel
[tex]56,1\frac{m}{s} =56,1\frac{100cm}{s} =5610cm[/tex]
Dystans w ciągu s F R
[tex]268\frac{km}{h} =268:3,6=ok. 74,44\frac{m}{s}[/tex]
[tex]74,44\frac{m}{s} =74,44\frac{100cm}{2} =7444cm[/tex]
Czas na 50 m EP
v=56,1m/s
s=50m
t=?
[tex]v=\frac{s}{t}[/tex]
[tex]t=\frac{s}{v} =\frac{50}{56,1} =ok. 0,89s[/tex]
Czas na 50m F R
v=74,44m/s
[tex]t=\frac{s}{v} =\frac{50}{74,44} =ok. 0,67s[/tex]
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Verified answer
Odpowiedź:
Obliczam szybkość Evandro Portela
s=1122dm=112,2m=0,1122km
t=2s= [tex]\frac{2}{3600} h=\frac{1}{1800} h[/tex]
[tex]v=\frac{s}{t} =\frac{0,1122}{\frac{1}{1800} } =0,1122*\frac{1800}{1} =201,96\frac{km}{h}[/tex]
bądź najpierw obliczamy w m/s i potem zamieniamy na km/h
[tex]v=\frac{s}{t} =\frac{112,2}{2} =56,1\frac{m}{s}[/tex]
[tex]56,1\frac{m}{s} =56,1\frac{0,001km}{\frac{1}{3600}h } =56,1*3,6\frac{km}{h} =201,96\frac{km}{h}[/tex]
Dystans w ciągu s E P-Edvandro Portel
[tex]56,1\frac{m}{s} =56,1\frac{100cm}{s} =5610cm[/tex]
Dystans w ciągu s F R
[tex]268\frac{km}{h} =268:3,6=ok. 74,44\frac{m}{s}[/tex]
[tex]74,44\frac{m}{s} =74,44\frac{100cm}{2} =7444cm[/tex]
Czas na 50 m EP
v=56,1m/s
s=50m
t=?
[tex]v=\frac{s}{t}[/tex]
[tex]t=\frac{s}{v} =\frac{50}{56,1} =ok. 0,89s[/tex]
Czas na 50m F R
v=74,44m/s
s=50m
t=?
[tex]v=\frac{s}{t}[/tex]
[tex]t=\frac{s}{v} =\frac{50}{74,44} =ok. 0,67s[/tex]