Re: g and signs

["RAUBER, JOEL" <JOEL_RAUBER@SDSTATE.EDU>]

THere are some books that don't wait to introduce vectors before 1dim
kinematics:

A couple of examples

Reif's "understanding mechanics"
Lea&Burke's "Physics"

I bet there are others,
Joel

> -----Original Message-----
> From: SSHS KPHOX [mailto:kphox@MAIL.CCSD.K12.CO.US]
> Sent: Monday, September 10, 2001 1:51 PM
> To: PHYS-L@lists.nau.edu
> Subject: Re: g and signs
>
>
> One of he hard things about this is that we have an understanding of
> vectors and the directions associated. When most of us teach
> free fall and
> the kinematic equations, we have not introduced vectors. Yet
> we believe
> that the directions associated with pos and neg acceleration
> shouyld be
> intuitive.
>
>  Why do we wait to introduce vectors? The books all do, it seems.
>
> Ken Fox
> Science Department Coordinator
> IB Physics Teacher
> Smoky Hill High School
> Aurora, CO