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] |
I don't agree with Michael's paragraph above and I suspect it
illustrates a difficulty that Rick also hinted at with his model.
Here are the fatal words:
" [it] will land with some horizontal velocity in addition to
terminal vertical velocity".
While it is insightful to point out the separation of horizontal
and vertical motion for assigning gravity mediated
acceleration, it is an error to suppose that terminal velocity
is something that affects only the vertical component of velocity.
Air drag in fact opposes the instantaneous direction of flight as a
generalization I therefore hope that the sentiment was just a locution
rather than a carried over concept.
Brian Whatcott Altus OK Eureka!