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-----Original Message-----
From: phys-l-bounces@carnot.physics.buffalo.edu [mailto:phys-l-
bounces@carnot.physics.buffalo.edu] On Behalf Of Brian Whatcott
Sent: Monday, February 16, 2009 8:22 AM
To: Forum for Physics Educators
Subject: Re: [Phys-l] FCI answer?
John Clement wrote:
Not very. The drawing shows the puck moving from P to Q in the positiveX
direction, and it shows the force acting perpendicularly in the +Ythe
direction. It then tells you that the force would produce speed Vk if
puck were at rest. ....Ah yes. I think I see my error. When the direction is specified as
John M. Clement
Houston, TX
"horizontal" I did not deduce
that it was +X directed, rather that it was not directed in the +-Z
direction (i.e in the axis where the
kinematics was being viewed.) Silly me! :-)
BrianW
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