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Re: Questions on Neg. and Pos. Acceleration



----Original Message-----
From: jmanor [mailto:jmanor@REMC4.K12.MI.US]
Sent: Thursday, September 23, 1999 7:36 AM
To: PHYS-L@lists.nau.edu
Subject: Questions on Neg. and Pos. Acceleration


Is it possible for an object to have a negative acceleration while
increasing in speed? And also can you explain if the velocity of an
object be negative when its acceleration is positive and vice versa?

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Negative acceleration while increasing in speed would certainly describe the
situation of negative velocity in some coordinate system with acceleration
having a component in the same direction.

Yes to the second question, also, for the same reason.

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"Vocatus atque non vocatus - Deus aderit."
- Karl Jung
***********************************************************************
George Spagna
Department of Physics
Randolph-Macon College
P.O. Box 5005
Ashland, VA 23005-5505
phone: (804) 752-7344 FAX (804) 752-4724
e-mail: gspagna@rmc.edu
http://www.rmc.edu/~gspagna/



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