Recent content by Towely

p is sapposed to be density correct? but how am I sapposed to figure out density from the given information if I can only figure out the volume of the wing and not the entire plane and only the mass of the entire plane is given? And why would density matter in the first place?

No, it isn't taken out of the textbook. I read through multiple chapters a few times and haven't even found that equation in the book. I was gone the day he went through it too and he told me to ask one of my students for help because there's no time for us to meet outside of class. Every...

1. A light aircraft has a mass of 2.0x10^3 kg, a wingspan area of 10.0m^2, an upper wing distance of 1.75m, and a lower wing distance of 1.00m. What minimum takeoff speed must the airplane travel to become airborne? 2. V1= square root of ((2Fw)/(pA(((d2/d1)^2)-1)) 3. How am I...

Oops, can you please move this to the homework forum?

I have to make a compound machine that has an input force of 2N and an output force of 8N-10N. So far this is what I've got. Its a wheel and axle connected to a block and tackle. [PLAIN]img130.imageshack.us/img130/4974/physicsbo6.png[/URL] How much bigger will I have to make the wheel...

Really? I was thinking either that was the case or the static force between the tire and the cement was extremely low(because it only got high enough to make the wheel spin and then stayed about that high to keep it spinning instead of slipping). We did a problem pushing a wheelchair up an...

He might have but I specifically asked him: "so are you saying that if we layed a rubber block on cement and slid it we would come up with the same static friction force as if we put a tire on cement and rolled it?" He said yes. I know it IS a static friction force that makes it so the...

My physics teacher is saying that: The friction force acting on a wheel that is spinning is = to the STATIC friction force of the rubber wheel material on the cement. That doesn't make any sense though because the static friction force is greater than the kinetic friction force so based on...