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-----Original Message-----
From: Tina Fanetti [mailto:FanettT@QUEST.WITCC.CC.IA.US]
Sent: Monday, September 10, 2001 1:24 PM
To: PHYS-L@lists.nau.edu
Subject: g
Hello
I have a problem with my calc-based physics students. The
problem is over the sign of g, the gravitational acceleration.
I have told them the convention is that it is always downward
even if the object is going upward.
I can't seem to explain to them why this is. They tell me
the book says it is positive. That is not what the book
says, the book says exactly what I am saying.
How can I make it clearer to them about g and its sign?
Thanks
Tina
Tina Fanetti
Physics Instructor
Western Iowa Technical Community College
4647 Stone Ave
Sioux City IA 51102
712-274-8733 ext 1429