Odpowiedź:
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Masa ciała m 5 kg 2 kg 100 kg 10 kg 40 kg 0,05 kg
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Siła wypadkowa F 200 N 0,6 N 500 N 30 N 200 N 0,2 N
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Przyspieszenie a 40 m/s² 0,3 m/s² 5 m/s² 0,3 m/s² 5 m/s² 4m/s²
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Wyjaśnienie:
[tex]a = \frac{F}{m} \ \ \rightarrow \ \ F = m\cdot a \ \ \rightarrow \ \ m = \frac{F}{a}\\\\\\I. \ a = \frac{F}{m} = \frac{200 \ N}{5 \ kg} = 40\frac{N}{kg} = 40\frac{m}{s^{2}}\\\\II. \ a = \frac{F}{m} = \frac{0,6 \ N}{2 \ kg} = 0,3\frac{N}{kg} = 0,3\frac{m}{s^{2}}\\\\III. \ F = m\cdot a = 100 \ kg\cdot5\frac{m}{s^{2}} = 500 \ N[/tex]
[tex]IV. \ F = m\cdot a = 10 \ kg\cdot0,3\frac{m}{s^{2}} = 30 \ N\\\\V. \ m = \frac{F}{a} = \frac{200 \ N}{5\frac{m}{s^{2}}} = 40 \ kg\\\\VI. \ m = \frac{F}{a} = \frac{0,2 \ N}{4\frac{m}{s^{2}}} = 0,05 \ kg[/tex]
