Odpowiedź :
[tex]30 \frac{km}{h} = 30 \times \frac{1000}{3600} = \frac{30000}{3600} = 8 \frac{1200}{3600} = 8 \frac{1}{3} \frac{m}{s} \approx 8,(3)\frac{m}{s}[/tex]
[tex]40 \frac{m}{s} = 40 \times 3.6 = 144 \frac{km}{h} [/tex]
Odpowiedź:
[tex]30\frac{km}{h}\approx8,33\frac{m}{s}\\\\40\frac{m}{s} = 144\frac{km}{h}[/tex]
Wyjaśnienie:
[tex]1 \ km = 1000 \ m\\\\1 \ m = \frac{1}{1000} \ km\\\\1 \ h = 3600 \ s\\\\1 \ s = \frac{1}{3600} \ h[/tex]
[tex]30\frac{km}{h} = 30\cdot\frac{1000 \ m}{3600 \ s} = 8,(3)\frac{m}{s} \approx8,33\frac{m}{s}\\\\40\frac{m}{s} = 40\cdot\frac{\frac{1}{1000}km}{\frac{1}{3600}h} = 40\cdot3,6\frac{km}{h} = 144\frac{km}{h}[/tex]