Problem $9\mathrm{.}19$

A mass $m_A=1\mathrm{.}4kg,$ moving with velocity vec$(v{)}_A=(3\mathrm{.}8$hat$(i)+4\mathrm{.}0$hat$(j)-2\mathrm{.}0$widehat$(k))\frac{m}{s},$ collides with mass $m_B=3\mathrm{.}8kg,$ which is initially at rest. Immediately after the collision, mass $m_A=1\mathrm{.}4kg$ is observed traveling at velocity vec$(v{)}_A^{\text{'}}=(-2\mathrm{.}0$hat$(i)+3\mathrm{.}6$widehat$(k))\frac{m}{s}.$

Part A

Find the velocity of mass $m_B$ after the collision. Assume no outside force acts on the two masses during the collision. Enter the $x,y,$ and $z$ components of the velocity separated by commas. Express your answer to two significant figures.

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