1.
[tex]Dane:\\m = 1 \ kg\\F = 5 \ N\\t = 5 \ s\\Szukane:\\s = ?\\\\\\a = \frac{F}{m}\\\\a = \frac{5 \ N}{1 \ kg} = 5\frac{N}{kg} = 5\frac{m}{s^{2}}\\\\\\s = \frac{1}{2}at^{2}\\\\s = \frac{1}{2}\cdot5\frac{m}{s^{2}}\cdot(5 \ s)^{2}\\\\\boxed{s = 62,5 \ m}[/tex]
2.
[tex]Dane:\\m = 2 \ kg\\t = 5 \ s\\F = 5 \ N\\Szukane:\\v = ?\\\\\\a = \frac{F}{m}\\\\a = \frac{5 \ N}{2 \ kg} = 2,5\frac{N}{kg} = 2,5\frac{m}{s^{2}}\\\\\\v = a\cdot t\\\\v = 2,5\frac{m}{s^{2}}\cdot5 \ s\\\\\boxed{v = 12,5\frac{m}{s}}[/tex]
