it is worth noting that human capabilities vary, and some individuals can achieve speeds higher than 30 km/h (18.6 mph).
Professional athletes, such as sprinters, can reach impressive speeds. Usain Bolt, for example, holds the world record for the fastest 100-meter sprint, with a top speed of over 37 km/h (23 mph). However, it's important to recognize that achieving such speeds requires exceptional training, physical conditioning, and genetic factors that contribute to an individual's athletic performance.
For most people, running speeds vary depending on factors such as age, fitness level, training, and individual biomechanics. It's always important to consider personal capabilities and consult with a medical professional or coach before engaging in any intense physical activities or attempting to reach high speeds.