Oblicz średnią prędkość rekordzisty świata w biegu maratońskim Ronaldo da Costa ktory odległość 42,192 km przebył w czasie 2godz 6min 5s.
Wypisać dane, szukane i wzór ;d
Wypisać dane, szukane i wzór ;d
Isoko
![Dane:\\s = 42,192 [km] = 42192 [m]\\t = 2 [h] \ \ 6 [min] \ \ \ 5[s] = 7565 [s]\\\\Szukane :\\v = ? \\\\Rozwiazanie :\\v = \frac{s}{t} \\\\v = \frac{42192 [m]}{ 7565 [s]} \\\\v \approx 5,58 [ \frac{m}{s}]](https://tex.z-dn.net/?f=Dane%3A%5C%5Cs+%3D+42%2C192+%5Bkm%5D+%3D+42192+%5Bm%5D%5C%5Ct+%3D+2+%5Bh%5D+%5C+%5C+6+%5Bmin%5D+%5C+%5C+%5C+5%5Bs%5D+%3D+7565+%5Bs%5D%5C%5C%5C%5CSzukane+%3A%5C%5Cv+%3D+%3F+%5C%5C%5C%5CRozwiazanie+%3A%5C%5Cv+%3D++%5Cfrac%7Bs%7D%7Bt%7D+%5C%5C%5C%5Cv+%3D++%5Cfrac%7B42192+%5Bm%5D%7D%7B+7565+%5Bs%5D%7D+%5C%5C%5C%5Cv+%5Capprox+5%2C58+%5B+%5Cfrac%7Bm%7D%7Bs%7D%5D+ "Dane:\\s = 42,192 [km] = 42192 [m]\\t = 2 [h] \ \ 6 [min] \ \ \ 5[s] = 7565 [s]\\\\Szukane :\\v = ? \\\\Rozwiazanie :\\v = \frac{s}{t} \\\\v = \frac{42192 [m]}{ 7565 [s]} \\\\v \approx 5,58 [ \frac{m}{s}]")
3 votes
Thanks 3
Mathēmatikós
![Dane: \\ \\ s=42,192km \\ \\ t=2h \ 6min \ 5s=2 \frac{365}{3600}h=2 \frac{73}{720} h \\ \\ \\ \\ Szukane: v=? \\ \\ \\ \\ Rozwiazanie: \\ \\ v= \frac{s}{t} \\ \\ v= \frac{42,192km}{2 \frac{73}{720h} } = \frac{ \frac{5274}{125} }{ \frac{1513}{720} } [ \frac{km}{h}] =\frac{5274}{125} * \frac{720}{1513} =20 \frac{2956}{37258} \approx 20,07 \frac{km}{h}](https://tex.z-dn.net/?f=Dane%3A+%5C%5C++%5C%5C+s%3D42%2C192km+%5C%5C++%5C%5C+t%3D2h+%5C+6min+%5C+5s%3D2+%5Cfrac%7B365%7D%7B3600%7Dh%3D2+%5Cfrac%7B73%7D%7B720%7D+h+%5C%5C++%5C%5C++%5C%5C++%5C%5C+Szukane%3A+v%3D%3F+%5C%5C++%5C%5C++%5C%5C++%5C%5C+Rozwiazanie%3A+%5C%5C++%5C%5C+v%3D+%5Cfrac%7Bs%7D%7Bt%7D+++%5C%5C++%5C%5C+v%3D+%5Cfrac%7B42%2C192km%7D%7B2+%5Cfrac%7B73%7D%7B720h%7D+%7D+%3D+%5Cfrac%7B+%5Cfrac%7B5274%7D%7B125%7D+%7D%7B+%5Cfrac%7B1513%7D%7B720%7D+%7D+%5B+%5Cfrac%7Bkm%7D%7Bh%7D%5D+%3D%5Cfrac%7B5274%7D%7B125%7D+%2A+%5Cfrac%7B720%7D%7B1513%7D+%3D20+%5Cfrac%7B2956%7D%7B37258%7D+%5Capprox+20%2C07++%5Cfrac%7Bkm%7D%7Bh%7D+ "Dane: \\ \\ s=42,192km \\ \\ t=2h \ 6min \ 5s=2 \frac{365}{3600}h=2 \frac{73}{720} h \\ \\ \\ \\ Szukane: v=? \\ \\ \\ \\ Rozwiazanie: \\ \\ v= \frac{s}{t} \\ \\ v= \frac{42,192km}{2 \frac{73}{720h} } = \frac{ \frac{5274}{125} }{ \frac{1513}{720} } [ \frac{km}{h}] =\frac{5274}{125} * \frac{720}{1513} =20 \frac{2956}{37258} \approx 20,07 \frac{km}{h}")
1 votes
Thanks 3