The table shows the height in centimeters, that a weight bouncing from a spring would achieve if there were no friction, for a given number of seconds.
| Time (s) | Height (cm) |
|---|---|
| 0 | 0 |
| 0.75 | 15 |
| 1.5 | 0 |
| 2.25 | −15 |
| 3 | 0 |
| 3.75 | 15 |
| 4.5 | 0 |
| 5.25 | −15 |
| 6 | 0 |
From its resting position, how long does it take the weight to bounce one direction, then the other, and then back to its resting position?
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