<image>Xiaoming and Xiaoqiang are participating in a 100-meter race. Xiaoming runs faster than Xiaoqiang, and if they start at the same time, Xiaoming will definitely win. Now, Xiaoming allows Xiaoqiang to run a certain distance ahead. In the image, rays a and b represent the distance run by each and the relationship with Xiaoming's catching up time. Based on the graph, determine how many meters per second Xiaoming is faster than Xiaoqiang.
