Hej!
45 m/s = 45 * 3,6 km/h = 162 km/h
112 m/s = 112 * 3,6 km/h = 403,2 km/h
Pozdrawiam! - Julka
[tex]45\frac{m}{s} = 45\cdot\frac{\frac{1}{1000}km}{\frac{1}{3600}h} = 45\cdot3,6\frac{km}{h} = 162\frac{km}{h}[/tex]
[tex]112\frac{m}{s} = 112\cdot\frac{\frac{1}{1000}km}{\frac{1}{3600}h} = 112\cdot3,6\frac{km}{h} = 403,2\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]