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Comparison of forces and thrust efficiency between Swimmer A and B.
| Item | A | B |
|---|---|---|
| Average of swimmer’s advancing speed (m·s-1) | 1.84 | 1.75 |
| Average of resultant force, ave(|F|), (N) | 63.9 | 52.4 |
| Average of thrust force, ave(|Fx|), (N) | 32.4 | 23 |
| Thrust efficiency, η (%) | 50.7 | 43.9 |
