Jawab:
Dik : m = 30kg
Ek = 500 J
Dit : v = ?
Jb :
[tex]E_k = \frac{1}{2}mv^2\\500=\frac{1}{2}.30.v^2\\500.\frac{2}{30}=v^2\\v^2=\frac{100}{3}\\v=\sqrt{\frac{100}{3}}\\v=\frac{10}{\sqrt{3}} = \frac{10}{3}\sqrt{3} m/s[/tex]
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Jawab:
Dik : m = 30kg
Ek = 500 J
Dit : v = ?
Jb :
[tex]E_k = \frac{1}{2}mv^2\\500=\frac{1}{2}.30.v^2\\500.\frac{2}{30}=v^2\\v^2=\frac{100}{3}\\v=\sqrt{\frac{100}{3}}\\v=\frac{10}{\sqrt{3}} = \frac{10}{3}\sqrt{3} m/s[/tex]