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]

[Phys-L] Re: conservation of angular momentum question

Just a minor quibble:

A pair of (equal and opposite) forces separated by a lever arm is a
couple. There is a nonzero moment (torque) associated with any single
force if its line of action doesn't pass through the origin.

On Mon, 14 Mar 2005 20:54:34 -0500, John S. Denker <jsd@AV8N.COM> wrote,
in part:

To accelerate one of the cylinders, it is necessary and sufficient to
have a _moment_, i.e. a pair of forces separated by a lever-arm.
Phys-L mailing list