Odpowiedź :
[tex]F = 8 \ N\\a = 4\frac{m}{s^{2}} = 4\frac{N}{kg}\\m = ?\\\\a = \frac{F}{m} \ \ \rightarrow \ \ m = \frac{F}{a}\\\\m = \frac{8 \ N}{4\frac{N}{kg}}\\\\m = 2 \ kg[/tex]
[tex]F = 8 \ N\\a = 4\frac{m}{s^{2}} = 4\frac{N}{kg}\\m = ?\\\\a = \frac{F}{m} \ \ \rightarrow \ \ m = \frac{F}{a}\\\\m = \frac{8 \ N}{4\frac{N}{kg}}\\\\m = 2 \ kg[/tex]