Recent content by Weirdbro

Are you absolutely sure about the calculated drag force? Your equation is correct, although I get 4.293 when I plug your data into it (probably rounding differences). I'm not terribly familiar with wind tunnels, but try checking the units of the readings that you're getting from it.

F = -kx Work = F*x Work for variable force = integral (F dx) W = integral (-kx dx) = -k integral(x dx) = -1/2k x^2 W = -1/2k x^2 U = -W = 1/2 k x^2

Weight, as used commonly, refers to the weight force. The net force on a body may equal 0, but this is due to the force normal of the surface beneath it cancelling out the force from gravity. Just because gravity provides constant acceleration, does not mean that it is purely an acceleration. It...