Question

Ajuda pfvr! A pergunta está na foto :)​

Answer 1

$E_c = \dfrac{mv^2}{2}\\E_c = \dfrac{6 \cdot 2 ^2}{2}\\E_c = 3 \cdot 4\\ \boxed{E_c = 12J}$

Answer 2

Resposta:

$ec = mv ^{2} ec = 6^{2}.2 ^{2} ec = 3^{2}.4 ec = 12j$