Table 1.
Example of data for coordinates, speed, and acceleration
| Time | X | Y | Distance (m) | Speed (m/s) | Acceleration (m/s2) |
|---|---|---|---|---|---|
| · | · | · | · | · | · |
| · | Xn | Yn | · | · | · |
| · | Xn + 1 | Yn + 1 | Dn | Sn | · |
| · | · | · | · | Sn + 1 | An |
| 34.31.0 | 60 | 38 | · | · | · |
| 34.31.1 | 60 | 38 | 0 | 0 | · |
| 34.31.2 | 60 | 39 | 0.006 | 0.06 | 0.6 |
| 34.31.3 | 59.5 | 44.5 | 0.0331361 | 0.331361 | 2.71361 |
| 34.31.4 | 59 | 50 | 0.0331361 | 0.331361 | 0 |
| 34.31.5 | 58.5 | 50 | 0.0067082 | 0.067082 | –2.6428 |
| 34.31.6 | 58.5 | 50 | 0 | 0 | –0.67082 |
| · | · | · | · | · | · |
Raw serial data of time and X–Y coordinates for a 0.6-s epoch are shown. Data are recorded every 0.1 s, so 3000 rows are recorded in 5 minutes in practice. Speed and acceleration were calculated using our custom program (see text for formulae). For this 0.6-s epoch, maximum speed is 0.33 m/s, and maximum acceleration is 2.71 m/s2.