Brad is riding his bicycle on a straight stretch of road. When he passes a traffic light, he begins timing himself. In LaTeX: 29.9 29 . 9 seconds, he cycles LaTeX: 220 220 meters. His rate of acceleration during this stretch was LaTeX: 0.14 0 . 14 m/sLaTeX: ^{2}. Given this information, what was Brad's initial velocity when he started timing himself? Assume all motion is in the positive direction. LaTeX: 7.8 m/s LaTeX: 2.9 m/s LaTeX: 5.3 m/s LaTeX: 0 m/s