Thursday, October 6, 2011

10-6 and 10-7

Today I apologized for the challenge laid down by last night's homework; hopefully today's lesson smoothed things out for everyone. 
Today we:  Simplified the value we'll be using for "g" in class from -9.81m/s/s to -10 m/s/s. 
Drew a motion map using the -10m/s/s and representing the velocity every second of an object thrown vertically.
Reminded everyone that gravity only affects an object's vertical motion (no effect on horizontal).
Worked through homework problems after having different explanations (worked much better for most)
Picked up one more homework assignment:  READ p. 98-103; work #1-3 on p. 102 and 1-4 ,6,7 on p. 103.   DUE MONDAY
Tomorrow:  (Fun) demonstrations that gravity only affects vertical motion (I will try to show you different examples than just the video that we moved frame-by-frame on Wednesday).  Plus a chance to win $1 if your reflexes are fast enough, and the physics behind the challenge.
Want to practice?  http://www.humanbenchmark.com/tests/reactiontime/index.php
Get below 0.2s on this and you might have a shot.

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