Odpowiedź:
15 m/s = 54 km/h
36 m/min = 6 dm/s
24 km/h = 400 m/min
Szczegółowe wyjaśnienie:
[tex]1 \ km = 1000 \ m \ \ \rightarrow \ \ 1 \ m = \frac{1}{1000}m\\\\1 \ h = 3600 \ s \ \ \rightarrow \ \ 1 \ s = \frac{1}{3600}h\\\\15\frac{m}{s} = 15\cdot\frac{\frac{1}{1000}km}{\frac{1}{3600}s} = 15\cdot3,6 \ \frac{km}{h} = \boxed{54\frac{km}{h}}[/tex]
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[tex]1 \ m = 10 \ dm\\\\1 \ min = 60 \ s\\\\36\frac{m}{min} = 36\cdot\frac{10 \ dm}{60 \ s} = \boxed{6\frac{dm}{s}}[/tex]
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[tex]1 \ km = 1000 \ m \\\\1 \ h = 60 \ min\\\\24\frac{km}{h} = 24\cdot\frac{1000 \ m}{60 \ min}=\boxed{400\frac{m}{min}}[/tex]
