1.
[tex]Dane:\\v_{o} = 10\frac{m}{s}\\t = 10 \ s\\v = 25\frac{m}{s}\\Szukane:\\s = ?\\\\Rozwiazanie\\\\a = \frac{\Delta v}{t} = \frac{25\frac{m}{s}-10\frac{m}{s}}{10 \ s} = \frac{15\frac{m}{s}}{10 \ s} = 1,5\frac{m}{s^{2}}\\\\s = v_{o}t = \frac{1}{2}at^{2}\\\\s = 10\frac{m}{s}\cdot10 \ s+\frac{1}{2}\cdot1,5\frac{m}{s^{2}}\cdot(10 \ s)^{2}\\\\s =100 \ m + 75 \ m\\\\\boxed{s = 175 \ m}[/tex]
2.
[tex]Dane:\\v_{o} = 5\frac{m}{s}\\t = 10 \ s\\v = 15\frac{m}{s}\\Szukane:\\a = ?\\\\Rozwiazanie\\\\a = \frac{\Delta v}{t} = \frac{v-v_{o}}{t}\\\\a = \frac{15\frac{m}{s}-5\frac{m}{s}}{10 \ s} = \frac{10\frac{m}{s}}{10 \ s}\\\\\boxed{a = 1\frac{m}{s^{2}}}[/tex]