The $5\mathrm{.}9-Mg$ bus $B$ is traveling to the right at $v_B=20\frac{m}{s}.$ Meanwhile a $2-$Mg car $A$ is traveling at $v_A=12\frac{m}{s}$ to the right. the Vehicles crash and become entangled. Assume that the vehicles are free to roll during collision. $($Figure $1)$

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$1$ of $1$

Part A

Determine their common velocity just after the collision.

Express your answer to three significant figures and include the appropriate units.

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