Final answer:
The route sheet indicates the sequence of machines that the car body goes through. 2000 pieces will flow through the machines from A to F based on this sequence.
Step-by-step explanation:
In this scenario, the car body goes through a sequence of machines A, F, E, D, C, B, and then back to A and F again. This sequence represents the route sheet for the part. Based on this sequence, 2000 pieces will flow through the machines from A to F. Each piece will follow the same path from A to F as indicated in the route sheet.