Re: [Phys-l] The "why" questions

["D.V.N. Sarma" <dvnsarma@gmail.com>]

The whole of physics was built upon the assumption that
every effect has a cause and it has come into existence
as a consequence of this search.

I know that acceleration occurs only after i put my finger to the body
and push it. This determines temporal sequence of force and
acceleration. How can you call it concomitance?

regards,
Sarma.


On Sun, Nov 28, 2010 at 9:58 PM, John Denker <jsd@av8n.com> wrote:

> More relevant to this list is the fact that you really should
> not interpret F=ma as a statement that F causes ma or vice
> versa.  Neither comes before the other, and you can't have
> either without the other ... so neither can be considered
> the cause of the other.
>
>  It has been suggested that in theory you could say F causes
>  ma *and* ma causes F.  This exhibits the correct symmetry.
>  OTOH almost nobody likes this suggestion.  All the witch
>  doctors want the arrow of causation to run one way and
>  not the other.
>
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