The three freight cars $\backslash ($ A$,$ B $\backslash ),$ and $\backslash ($ C $\backslash )$ have masses of $12\backslash (\backslash$mathrm$\{$Mg$\},6\backslash$mathrm$\{$Mg$\}\backslash ),$ and $25$ Mg $,$ respectively. They are traveling along the track with the velocities shown. Car $\backslash ($ A $\backslash )$ collides with car $\backslash ($ B $\backslash )$ first, followed by car $\backslash ($ C $\backslash ).$

$($Figure $1)$

Part A

If the three cars couple together after collision, determine the common velocity of the cars after the two collisions have taken place.

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

$\backslash [$

v$\_\{$A B C$\}=\backslash$square $\backslash$bar$\{\backslash$square$\}$

$\backslash ]$

Request Answer

Provide Feedback

Figure