a)
[tex]36 \frac{km}{h} = 36 \times \frac{1000}{3600} = \frac{36000}{3600} = 10 \frac{m}{s} [/tex]
[tex]20 \frac{m}{s} = 20 \times 3.6 = 72 \frac{km}{h} [/tex]
[tex]108 \frac{km}{h} = 108 \times \frac{1000}{3600} = \frac{108000}{3600} = 30 \frac{m}{s} [/tex]
[tex]5 \frac{m}{s} = 5 \times 3.6 = 18 \frac{km}{h} [/tex]
b)
Nie czytelne
c)
[tex]s = v \times t \\ \\ s = 36 \frac{m}{s} \times 18000s = 648.000m = 648km[/tex]
d)
[tex]t = \frac{s}{v} \\ \\ t = \frac{40km}{16 \frac{km}{h} } = 2.5h = 150min[/tex]
