Two vehicles collide. Vehicle A has a weight of WA = 3000 lb and its crush stiffness is kA = 7900 lb/in. Vehicle B has a weight of WB = 4500 lb and has a stiffness of kB = 5100 lb/in. Vehicle A is...

Two vehicles collide. Vehicle A has a weight of WA = 3000 lb and its crush stiffness is kA = 7900 lb/in. Vehicle B has a weight of WB = 4500 lb and has a stiffness of kB = 5100 lb/in. Vehicle A is stationary when it is rear-ended by vehicle B. The vehicles are mangled and they skid together to a stop. Measurements after the accident show that after the crash the two mangled vehicles skidded 22 ft before coming to a stop. The sliding friction coefficient between the two crushed vehicles and the road is estimated as µk = 0.7. Calculate the impact forces and accelerations experienced by the vehicles, as well as the speed of vehicle B immediately before the crash.