Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
-----Original Message----- It was written:
Our syllabus describes frcition as a force that opposes motion.
Where's That From?????
I ask how could we move if there was no friction?
Good question! The syllabus doesn't make any sense.
*****************************
Friction opposes the relative motion of surfaces in contact -
it opposes slipping of your feet when you walk -
it opposes slippage of the tires as a car accelerates.
When motion of the contact point is thus impeded momentum is transferable
into other, allowed motion.
Bob Sciamanda
Physics, Edinboro Univ of PA (Em)
treborsci@verizon.net
www.sciamanda.com
_______________________________________________
Forum for Physics Educators
Phys-l@www.phys-l.org
http://www.phys-l.org/mailman/listinfo/phys-l