Two people push a 2,000kg car to get it started. An acceleration of at least 1.5m/s2 is required to get the car to a speed that will start it. Assuming both people apply the same magnitude force, approximately how much force will each need to apply if friction that opposes the motion of the car is 300N

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?