Odpowiedź :
[tex]40\frac{km}{h} = 40\cdot\frac{1000 \ m}{3600 \ s} = 11,(1)\frac{m}{s}\approx 11,1\frac{m}{s}\\\\25\frac{m}{s} = 25\cdot\frac{\frac{1}{1000}km}{\frac{1}{3600}h}} = 2,5\cdot3,6\frac{km}{h} = 90\frac{km}{h}[/tex]
[tex]40\frac{km}{h} = 40\cdot\frac{1000 \ m}{3600 \ s} = 11,(1)\frac{m}{s}\approx 11,1\frac{m}{s}\\\\25\frac{m}{s} = 25\cdot\frac{\frac{1}{1000}km}{\frac{1}{3600}h}} = 2,5\cdot3,6\frac{km}{h} = 90\frac{km}{h}[/tex]