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Dafna1 [17]
3 years ago
9

PLEASE HELPPPP!!!!!!!!!!

Physics
2 answers:
son4ous [18]3 years ago
5 0

Answer:

I think its B

Explanation:

marysya [2.9K]3 years ago
3 0
I’m pretty sure it’s B :)
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The collision is perfectly inelastic as the lumps stick to each other so we have the relation

mu_1+mu_2=(m+m)v\\\Rightarrow m(u_1+u_2)=2mv\\\Rightarrow v=\dfrac{u_1+u_2}{2}\\\Rightarrow v=\dfrac{3x+3y-3z-4x+0y-4z}{2}\\\Rightarrow v=-0.5x+1.5y-3.5z=\ \text{m/s}

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hope this helped a little and if it did pls mark brainiest :)

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