## Question:

Car A has weight ${ W }_{ A }$ and is traveling to the right at speed ${ v }_{ A }$ Meanwhile car B of weight ${ W }_{ B }$ is traveling at speed ${ v }_{ B }$ to the left. If the cars crash head-on and become entangled, determine their common velocity just after the collision. Assume that the brakes are not applied during collision. Given: ${ W }_{ A }$= 4500 lb , ${ W }_{ B }$= 3000 lb , ${ v }_{ A }$ = 3 ft/s , ${ v }_{ B }$= 6 ft/s , g = ${ 32.2ft/s }^{ 2 }$