Recent content by Grey_Thunderhead

Thank you very much for your help!

180-68.63 is 111.37 degrees, which is 338.63 degrees for navigation. Is that the answer the problem is looking for and if so, did I need to convert to "standard" convention at all?

My teacher said bearings are based around north, meaning that the 340 and 320 degrees mentioned in the problem are 340 and 320 degrees clockwise from north on a compass, which is 90 degrees on the standard unit circle. That means I had to convert them to what she calls "standard" position in...

Homework Statement [/B] "An airplane is flying on a bearing of 340 degrees at 400mph. A wind is blowing at a bearing of 320 degrees at 30mph. Find ground speed and direction of the plane." Homework Equations vx=vcosϕ vy=vsinϕ The Attempt at a Solution [/B] First, my teacher told us to change...

I finally got it, thanks so much for the tip because I was getting them mixed up

I've only ever been taught that angular acceleration is equal to the linear acceleration divided by the radius. I do know that α=Δω/Δt, and because ω is related to velocity, the α=a/r thing can be derived. Am I missing something important?

Homework Statement “A bicycle wheel is mounted as in the lab and as shown to the right. This wheel has a mass of 6.55 kg, a radius of R = 38.0 cm, and is in the shape of a ring. A mass M = 1.85 kg is attached to the end of a string which is wrapped around an inner hub which has a radius r =...