Respostas

2014-07-13T18:26:32-03:00
Massa = 10 ton = 10.000 kg
V = 20 m/s

Ec=\dfrac{m.v^2}{2} \\  \\ Ec = \dfrac{10000.400}{2} \\  \\ \boxed{Ec=2.000.000 \ J \ ou \ 2,0\times10^6 J}
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