A line graph showing adhesion characteristic curves for dry and wet conditions. The x-axis represents the velocity in meters per second ranging from 0 to 5, and the y-axis represents the adhesion coefficient ranging from 0 to 0.3. The red line represents the dry condition, peaking at around 0.28 at approximately 0.4 meters per second. The blue line represents the wet condition, peaking at around 0.16 at approximately 0.3 meters per second. Both lines gradually decline as the velocity increases. All values are approximated.
Adhesion characteristic curve. Source: Authorsā own work