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# When the wind doubles does the pressure in the sails increase 8 times?

###### Wiki User

###### 2006-08-30 21:15:22

When the apparent wind speed is doubled, the pressure on the

sail is quadrupled. That is because the pressure on the sail (or

the side of your house or a billboard sign) is proportional to the

square of the speed of the wind. If the wind speed triples, then

the pressure goes up by a factor of nine, because three squared is

nine.

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