http://library.edumall.sg/cos/o.x?c=/library/reslib&ptid=84&func=prop2&id=47103&full=1
Which ball will reach the end of the track in a shorter time than the other?
Both balls moves with the same initial velocity
Green ball about to accelerate along the curve slope whenas the red ball is still moving the same roughly horizontal track
What did you notice? The green ball is ahead in terms of x direction. Explain possible reason(s) why.
What did you notice here? The green ball is still ahead in terms of x direction while its velocity is lower but still higher than the red ball's.
What did you notice here? The green ball is clearly still ahead in terms of x direction while its velocity is roughtly equal to the red ball's.&nb! sp;
hint: think in terms of the area under the graph of v vs t equal to change in displacement.
Post your answers in the comments!!
http://library.edumall.sg/cos/o.x?c=/library/reslib&uid=&ptid=84&func=prop2&id=47103
A demonstration to show that acceleration enables an object to reach the end of a slope sooner.Collaboration with NUS Physics Associate Professor Sow Chorng Haur.
Keywords: tracks gentle slope sharp dip accelerate physics area under velocity time graph
There is another video here http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=142.0
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=142.msg6114#msg6114
[quote author=lookang link=topic=142.msg6114#msg6114 date=1272589703]
FlexTrackRaces.mov
A video suitable for video analysis found here http://www.cabrillo.edu/~dbrown/tracker/mechanics_videos.zip
[b][color=red]It will be cool to have an Ejs version of the racing balls! For your consideration ;D[/color][/b]
[/quote]
A JDK applet by Fu Kwun Hwang
graphical method in physics
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