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(This wiki page is to show what kind of interaction would be desired in this kind of project. Anything in **parenthesis** would not be on the wiki page and is for informational purposes.)

Projectile Motion Visual and Audio Creation Project (EME5207 - Artifact 2)
Group Members: Matt A. and Joe C. (Joe C. is the made up partner to show collaboration in this activity) (As students update this wiki they will put in Update by to clarify the conversation)

Update by Matt A: Hi Joe, I went ahead and updated the that our teacher gave us and included the  here on the wiki as well. We should first figure out the information we will need to gather before we start to think about our visual and audio to go with it.

Update by Joe: That sounds good. Our text will be a helpful source but it looks like we should gather information from other sources as well. What do you think about looking at projectile motion with an object that is sent over level ground? Maybe we could have the motion of a golf ball going through the air.

Update by Matt: Yes, that will be a good type of problem to work through. There are many important aspects to look at with that kind of problem. Here are a couple of things that I found in our book that we should probably include. (Resource: Giancoli, D. (2005). Physics: Principles with Applications. Upper Saddle River, New Jersey: Pearson Prentice Hall.)

When the ball is hit there is an x and y component to the velocity as it goes through the air. It’s important to break down the velocity into the x and y components (2005). Maybe we should show that at the beginning and show the right triangle trig we would need to do to set up the problem. Another thing that will be important is to show the parabolic nature of the golf ball as it goes through the air. The second half of flight is symmetrical to the first half.

Update by Joe: Great, we will also need to mention that this situation is assuming no air resistance or it would not be symmetrical. I found a good resource for us to use [|http://hyperphysics.phy-astr.gsu.edu/hbase/mot.html#motcon](Resource: Georgia State University. (2013). HyperPhysics: Department of Physics and Astronomy. Retrieved from [])

The velocity in the x direction will not change since there is no forces acting on it. The velocity in the y, however, will always be changing. Maybe we could put arrows on the ball to show this relationship along its path. We could also include the equations governing the x and y motion. For x motion it is just V = delta x/ time. For y we will need to have the one where it gives us time half way since the y velocity at the top is zero.

Update by Matt: I was thinking it may be helpful to have actual numbers in there and work out a problem. It would probably help give better meaning to the picture. I’ll go ahead and work it out below and let me know if there is any issues.

A golf ball is hit off a tee with a velocity of 26 m/s at an angle of 35 degrees. Determine how far the ball traveled assuming no air resistance. Initial velocity is 26 m/s at an angle of 35 deg above the horizontal. To find the initial x velocity… 26*cos(35) = 21.30 m/s and initial y velocity… 26*sin(35) = 14.91 m/s. The time half way… Vyf = Vyi + at… 0 at the top… 0 = 14.91m/s + (-9.8)t… t = 1.52 sec half way so the full way is… 3.04 sec Total x displacement is Vx = delta x / t… (21.3m/s) (3.04 sec) = 64.8 meters

Update by Joe: Good idea including the example problem. I think we are ready for the design phase. I found this drawing resource we can both get for free and work on the visual. It is Inkscape.

I can go ahead and set up the background image and why don’t you put the technical information in there.

Update by Matt: Sounds good, I’ll start working on getting a way to have audio and publish it online.

Update by Joe: I just finished the background with the arrows representing the velocity vectors. Here is the.

Update by Matt: This looks great… I’ll download Inkscape and get going with the text and informational items. I found [|Cam Studio Recorder]. Check it out!

Update by Matt: I was able to copy text from word. Here is my additional work that I was able to paste in the document. Vxi = (26 m/s) (cos (35) = 21.30 m/s Vyi = (26 m/s) (sin (35) = 14.91 m/s Vyf = Vyi + at… 0 m/s for y at the top Velocity is still 21.3 m/s in the x direction

0 = 14.91m/s + (-9.8) t t = 1.52 sec… time half way… time full way 1.52 sec * 2 = 3.04 sec

I also went ahead and color coded the x and y problems… I have the y problems with a black background and the x problem with the purple background.

Let me know if there is anything else I should add.



Update by Joe: This looks great Matt. I would just add our references to give them credit. I'll get the audio screen capture going with Cam Studio Recorder. Here are our two references...

Giancoli, D. (2005). Physics: Principles with Applications. Upper Saddle River, New Jersey: Pearson Prentice Hall. / Georgia State University. (2013). HyperPhysics: Department of Physics and Astronomy. Retrieved from []

And

Georgia State University. (2013). HyperPhysics: Department of Physics and Astronomy. Retrieved from [] I found a way to record the video with audio. Its Cam Studio Recorder. I can talk while I show the diagram if that works for you. You can then upload it on your blog page if you want.

Update by Matt: Great, I just put the links in there. Let me know when you finish the recording and I can upload it onto YouTube and update my blog to turn in the assignment.

Update by Joe: Just finished the recording I went ahead and just posted it on Viemo. Here is the link: []

Update by Matt: Looks great! I'll go ahead and open up the wiki page and post our work on my [|blog]. Pleasure working with you Joe.

Update by Joe: You too Matt!