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Leviafan [203]
2 years ago
6

Please please help I'm stuck!!!

Physics
2 answers:
alex41 [277]2 years ago
8 0
I GOTCHU THE ANSWER IS 2.44s
Korvikt [17]2 years ago
6 0

Answer: iDc im in 3grade

Explanation:sorry

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t=8 s

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x_{f}=x_{o}+v_{o}*t+\frac{1}{2} *a*t^{2}

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t^{2}-6*t-16=0\\ using :\\\frac{-b+/-\sqrt{b^{2}-4*c*a } }{2} \\\frac{-(-6)+/-\sqrt{(-6)^{2}-4*(-16)*(1) } }{2}=\frac{3}{2} +/- \frac{10}{2} \\t_{1} = 2s \\t_{2} = 8s

Check

t_{2}=8s

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