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Re: Newton's Second Law Lab



----- Original Message -----
From: "Ludwik Kowalski" <KowalskiL@MAIL.MONTCLAIR.EDU>
To: <PHYS-L@lists.nau.edu>
Sent: Tuesday, July 04, 2000 6:11 PM
Subject: Re: Newton's Second Law Lab
, , ,
On the same screen you see three independent graphs.
One is above, showing F(t); one is below showing a(t).
Both are measured independently (several times each
second) as you are pushing and pulling the platform
back and forth through a forcemeter).

To be sure these "F" and "a" measurements are truly independent and direct
measurements of force and acceleration, one should inquire about the
mechanisms of the measuring devices.
Eg., is the accelerometer directly measuring a kinematical quantity, or a
dynamical quantity?

Bob

Bob Sciamanda (W3NLV)
Physics, Edinboro Univ of PA (em)
trebor@velocity.net
www.velocity.net/~trebor