(Solved): As shown in the figure below, cars \( \# 1 \) and \( \# 2 \) are sliding across a horizontal fricti ...

As shown in the figure below, cars \( \# 1 \) and \( \# 2 \) are sliding across a horizontal frictionless surface. The cars are equipped with a coupling arrangement similar to the one on railroad cars. Car \#1 overtakes car \#2 and they have a totally inelastic collision and become coupled together. You know the mass of each car; \( m_{1}=17.5 \mathrm{~kg} \) and \( m_{2}=48.0 \mathrm{~kg} \). In addition, you are provided with the following graph, which shows the momentum of car \#1 before, during and after the collision. Determine the velocity (in \( \mathrm{m} / \mathrm{s} \) ) of car \( \# 2 \) before the collision. \[ \mathrm{m} / \mathrm{s} \]