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Breaking Away Our riders are going away in a break with 2 km to go. Our Standard Rider is on 32 spoke standard wheels. Out Test Rider is on Specialized tri-spokes. Both riders jump at the same time with the same power and initial speed. They are identical in all other respects. Which one gets to the finish line first? The Specialized rider would be ahead by 14.6 meters or 1.2 seconds and would be riding at about 0.2 meters per second faster. Enter data for cases of interest to you.  |
| Parameter | Standard Rider | Test Rider | |
| Frontal Area | 0.5 | 0.5 | m2 |
| Coefficient Wind Drag | 0.5 | 0.5 | dimensionless |
| Air Density | 1.226 | 1.226 | kg/m3 |
| Weight Rider | 65.0 | 65.0 | kg |
| Weight Bike | 8.0 | 8.0 | kg |
| Front Wheel | |||
| Weight | 1.264 | 1.346 | kg |
| Ic | 0.0885 | 0.0904 | kg m/s2 |
| Cx0 | 0.0491 | 0.0379 | Dimensionless |
| Radius | 0.337 | 0.337 | m |
| Rear Wheel | |||
| Weight | 1.804 | 1.771 | kg |
| Ic | 0.0967 | 0.1032 | kg m/s2 |
| Cx0 | 0.0491 | 0.0379 | Dimensionless |
| Radius | 0.337 | 0.337 | m |
| Rear Shelter | 25. | 25. | % |
| Power | 350. | 350. | w |
| Coefficient of Rolling | 0.004 | 0.004 | dimensionless |
| Grade | 0.00 | 0.00 | decimal |
| Initial Speed | 10.0 | 10.0 | m/s |