Recent content by icandothemath
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High School Need help with gravitational acceleration SI units
Thanks for bearing with me, I don't know why this is so hard for me to get my head around. I think it is starting to sink in. c = Acceleration = the numerical value of Distance Fallen in first second So, we're really talking about acceleration in that first second. At one second Distance...- icandothemath
- Post #8
- Forum: Mechanics
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High School Need help with gravitational acceleration SI units
The math you posted makes sense if we are really talking about "Velocity in the first second" m/s^2 I think the mess up in my mind is the description of "Distance Fallen in first second" Should the speaker have said "Velocity in the first second"?- icandothemath
- Post #6
- Forum: Mechanics
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High School Need help with gravitational acceleration SI units
Thanks Bandersnatch, Distance Fallen in first second = acceleration was the key to making everything work. Displacement in meters = m/s2 * s2 Velocity in meters per second = 2 * m/s2 * s - m/s2 * s Acceleration in meters per second squared = 2 * m/s2 Gravity in meters per second squared = 2 *...- icandothemath
- Post #4
- Forum: Mechanics
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High School Need help with gravitational acceleration SI units
Please ignore strikeout (not sure why post is doing that) I just watched a video from Caltech (Video link at bottom of post) It says: Displacement = Distance Fallen in first second of time in [m] * Time2 so Time2 has no si unit as it is just a ratio right? Instant or Average Velocity = 2 *...- icandothemath
- Thread
- Acceleration Gravitational Gravitational acceleration Si Si units Units
- Replies: 7
- Forum: Mechanics
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Undergrad What Do Symbols 'R', 'S', and 'b' Mean in Aerodynamics Equations?
Thanks, CWatters and SteamKing, you 2 were a big help! I *think* I have it under control now. I *believe*: S = (BallSpin * BallRadius) / BallVelocity R = BallRadius. And I think the equation was missing all the closing brackets on the end. I have been at this for days. :) I seem to be getting...- icandothemath
- Post #4
- Forum: Other Physics Topics
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Undergrad What Do Symbols 'R', 'S', and 'b' Mean in Aerodynamics Equations?
Hi, In this article there are some symbols that I do not know what they are can you help me identify them? http://www.ijimt.org/papers/419-D0260.pdf Page 347 at the top the equation for CL what does the 'R' stand for? And while we are looking at the same equation. |w| is the magnitude of ball...- icandothemath
- Thread
- Symbols
- Replies: 3
- Forum: Other Physics Topics
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Graduate How to convert magnus effect from 2d to 3d?
Ok, maybe as I go through that document I can ask for some help if that is ok? In figure 1 of the pdf document. It talks about unit vector l, v, and v x l. Then spin rates around these axis. I am unsure what these axis are. The arrows in figure 1 do not make sense to me. They look like like...- icandothemath
- Post #5
- Forum: Mechanics
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Graduate How to convert magnus effect from 2d to 3d?
Thanks for the reply MarcusAqgrippa. I ended up stumbling upon this article that explains the effect in 3D space. http://www.crm.cat/en/publications/publications/2013/pr1154.pdf I do not totally understand it though. My implementation of the 2D effect can be found here...- icandothemath
- Post #3
- Forum: Mechanics
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Graduate How to convert magnus effect from 2d to 3d?
I am working on simulating the magnus effect of lift on a spinning ball. Right now spinning on the z axis I can calculate the force effect it has on the x and y coordinates. If I am to add spin on the x do I do the exact same calculations effecting the y and z coords and just add them to the z...- icandothemath
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- 2d 3d Convert Magnus Magnus effect
- Replies: 4
- Forum: Mechanics