Nobody helping me ma A car with a mass of 800 kg crashes head on into a truck with a mass of 1600 kg both moving at 3 m/s. It is an inelastic collision- what is the final velocity (magnitude and direction) of the two vehicle system?

Consider a production line with five stations. station 1 can produce a unit in 9 minutes. station 2 can produce a unit in 10 minutes. station 3 has two identical machines, each of which can process a unit in 12 minutes (each unit only needs to be processed on one of the two machines. station 4 can produce a unit in 5 minutes. station 5 can produce a unit in 8 minutes. which station is the bottleneck station?