Let's say you're driving down the road at 70mph (112 kph). If you hold a sign out of your window that's 20x20 cm square, how much force will be applied to the sign by the relative wind?
Asked
Active
Viewed 1,398 times
0
-
1Use the drag equation. – lemon Apr 09 '15 at 11:20
-
@lemon, Hi, thanks for that. I calculated the force to be about 20 newtons, is that about right? I'm not sure because I don't know what the units are in that formula. – CaptainCodeman Apr 09 '15 at 12:32
-
1I get 25.2 Newtons. – lemon Apr 09 '15 at 17:35