Respuesta :

AsiaLynx002

Explanation:

[tex]ke = \frac{1}{2} \times m \times {v}^{2 } \\ m = \frac{2 \times ke}{ {v}^{2} } \\ m = \frac{2 \times 70.0}{ {8}^{2} } \\ m = \frac{140}{64} = 2.1875[/tex]

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