Work ( W = F \times d )
This calculation shows the kinetic energy of the cheetah at 21 mph, not directly the "work" done to get it there, which would depend on the distance over which the force was applied and the force itself. 21 mph keju work
In short: the phrase may be bizarre, but the principle—that material properties change under specific velocity loads—is sound. Work ( W = F \times d )
: Front tires can develop patterns that cause handlebar vibration. Seaward Services, Inc. 21 mph keju work