The tarp covering on a trailer or truck puffs upward for fast-moving vehicles, which illustrates

Question

Quizplus · Accepted Answer

This phenomenon can be explained by Bernoulli's principle, which states that as the speed of a fluid (or in this case, air) increases, its pressure decreases. As the truck or trailer moves forward, air flows over the curved surface of the tarp, creating a region of low pressure above it, causing it to puff upwards.

The Tarp Covering on a Trailer or Truck Puffs Upward