Recent content by zappattack

Thanks guys, Maybe try a formula. But there are so many variables! F = 1/2 pu^2cdA, where p = density of water, u is velocity of object relative to fluid, cd is drag coefficient, A is frontal area of object. Say I did find a suitable value for cd... what's thehecking velocity of the...

Hello all, I know this is probably very simple stuff, but I'm a mature student, and a bit rusty. Essentially, I need to calculate the following: a sailboat of mass 52 tonnes, dimensions 50m x 6m x 2m, and square shaped sail of 150 m^2 is sailing by wind alone, which has a speed of 15 m...