On Thu, 24 Jul 2003 14:20:12 +1200, The_navigator© wrote:

So if a=0 f=0?

Depends, do you still believe "F=ma cannot be correct unless the object
applying/experiencing F also changes energy content!"

Cheers MC

Gerard Weatherby wrote:
On Thu, 24 Jul 2003 10:37:55 +1200, The_navigator© wrote:
Of course it still applies.


You tell me!


Technically, that depends on your reference frame. Let's consider the earth
stationary and the rock stationary. Therefore it is not accelerating. Does F=ma
still apply?




S/V Cat's Meow
http://www.catsmeow.org


S/V Cat's Meow
http://www.catsmeow.org