Respostas

2013-11-09T14:16:18-02:00
60 km/h≈16,6m/s
90 km/h=25m/s

a=   \frac{V_{f} - V_{i}}{ t_{f}-t_{i} }=\frac{25-16,6}{5-0}=\frac{8,4}{5}=1,68m/s^{2}
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