Respuesta :

Hrishii

Answer:

20 joule

Step-by-step explanation:

[tex]K. E. = \frac{1}{2} m {v}^{2} \\ = \frac{1}{2} \times 10 \times {2}^{2} \\ = \frac{1}{2} \times 10 \times 4 \\ = 20 \: j[/tex]

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