Re: Question about Kepler's second law

On Apr 14, 8:48 pm, "PD" <TheDraperFam...@xxxxxxxxx> wrote:
On Apr 14, 6:42 pm, "Peter" <Poakfi...@xxxxxxx> wrote:





On Apr 14, 6:54 pm, Phineas T Puddleduck <phineaspuddled...@xxxxxxxxx>
wrote:

In article <1176590209.784235.154...@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,

"Peter" <Poakfi...@xxxxxxx> wrote:
Angular velocity is a vector too, hence the cross product

(Point of contention - -actually a pseudovector, but it still uses the
cross product)

- Show quoted text -

The cross product is also a pseudovector.

Peter

Are you trolling, or deliberately obtuse?

You tell that to Douglas C. Giancoli (Physics for Scientists and
Engineers, 2nd ed., page 220).

Peter

Ah, well, at least you've moved up to an (old) college text. You'll
note that the terms "pseudoscalar" and "pseudovector" are not listed
in that freshman text. What does that tell you?

PD- Hide quoted text -

- Show quoted text -

Giancoli does talk about pseudovectors.

Peter


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