$(10$ points$)$ Two burnper hover boats are irvolved in a fun collision. Fach has a mass of $100$ kg J Jost before the collision the velocity of the red boat is $8\frac{m}{s}$ in the positive $x$ direction and the velocity of the blue boat is $3\frac{m}{s}$ in the positive $x-$direction. Immediately after the collision, the velocity of the red boat is $5\frac{m}{s}$ in the positive $x-$direction. After the collision, the blue bont's engine cata out and it slides to west due to the dinge forve firam the water $($asaume no other horizontal fomes are involoed$).$ The dryg force experienced by the blue boat after the collision is ahown in the graph gives heve. lision?