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5 mph
Water + speed equals to what ?
"Hydroplaning".
The formula that is used to compute hydroplaning speed is: Minimum total hydroplaning speed (knots) equals 9 times the square root of tire inflation pressure (psi) or: V = 9 ÆP For the B-757 main wheels, the speed would be: 9 Æ144 = 108 knots
Slower
lower
ture
Hydroplaning is like water skiing. You need standing water on the roadway, not just moisture, and the necessary speed which is determined using tire pressure and math. The hydroplaning speed for tires at 32 psi is approximately 51 mph minimum. If you hit standing water at any speed other than a crawl you most likely will experience handling problems and possible loss of control.
The difference is that constant speed doesn't change but variable speed does. (change)
Nothing...
Velocity is speed with direction
The technical difference is that speed has no direction but velocity has one.