model A no force
 |
| http://weelookang.blogspot.sg/2015/06/tracker-motion-of-person-progressive.html TRZ Download, Download2 Video Download, Download2 author video: ning, model: lookang when fx = 0 , there is no motion, vx =0 |
 |
|
author video: ning, model: lookang when fx = 0 , there is no motion, vx =0, note that y = -0.1 is for visualization purposes. |
model B constant speed
 |
|
author video: ning, model: lookang when fx = 0 and initial vx = 1.54, there is constant velocity motion, vx =1.54. notice the model is some what correct but not a close enough mathematical representation of the real motion. |
 |
|
author video: ning, model: lookang when fx = 0 , there is no motion, vx =1.54, note that y = -0.2 is for visualization purposes |
model C accelerate
 |
|
author video: ning, model: lookang when fx = 0.965*2 (from data analysis trend line parabolic fit, coefficient of A which is $ \frac{1}{2}a $) and initial vx = 0.2898 (from data analysis tool of mass A hand), there is constant acceleration motion. notice the model is some what getting better but still not a close enough mathematical representation of the real motion. |
 |
|
author video: ning, model: lookang when fx = 0.965*2 , and initial vx = 0.2898, there is constant acceleration motion,, note that y = -0.3 is for visualization purposes |
model D accelerate fx = 0.965*2 N for t = 0 to 0.8 s and constant speed v =1.83 m/s for t> 0.8 s
 |
|
author video: ning, model: lookang when fx = if(t<0.8,0.965*2,0) (computational thinking and mathematical demonstrating newton's 2nd and 1st law together) and initial vx = 0.2898 (from data analysis tool of mass A hand), there is constant acceleration motion. notice the model a close enough mathematical representation of the real motion. |
 |
|
author video: ning, model: lookang when fx = if(t<0.8,0.965*2,0) , and initial vx = 0.2898, there is constant acceleration motion,, note that y = -0.4 is for visualization purposes |
Tracker Motion of Person Progressive Model Building Pedagogy is made clear by lookang.
many thanks to the Open Source Physics community, +Douglas Brown and many more of them!
No comments:
Post a Comment