Walter & Group....
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Robert....
My thought is that the acceleration principles all apply no matter the kind of cast .... but the timing will change as will the path of the rod tip. Interesting to have some other opinions on this.
Gordy
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
From Steve Hollensed...
Hi Gordy,
In my comments about acceleration, I left out one word that makes a
world of difference.
I agree with Walter that the rate of change of a rate of change, is in
fact, perfectly ok. But the rate change of the SAME rate change (as in
the rate of velocity change of the rate of velocity change) doesn't make
sense and I think that is what the term "accelerated acceleration"
implies.
And I certainly agree with Mac that limiting ourselves as instructors
will hold back many students from reaching their full potential. This
study group certainly expands and stretches my thinking. Thanks for
providing this great forum and all of the brain food that goes along
with it.
Steve
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Steve .... OK ... but what happens with the launch of a space shuttle. Obviously, there is acceleration as it ascends from the launch pad. Does it move with constant acceleration ? .... or does this acceleration change as it goes farther into space ? In the event that it does. what term would we use to describe this ? .... 3rd order mathematical progression ????????
Gordy
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~