[Physics] Fwd: Physics Digest, Vol 5, Issue 2

[rmlaf at comcast.net]

Isn't force always an effect preceded by a cause? Inertial motion could always be a "rest" state. 

Lou 

----- Original Message -----

From: "Olivier Serret" <olivier.serret at free.fr> 
To: physics at tuks.nl 
Sent: Wednesday, February 8, 2017 6:32:16 AM 
Subject: Re: [Physics] Fwd: Physics Digest, Vol 5, Issue 2 

Hello Tom, 
Difficult to understand what you mean by “ Inertia is an illusion, there isno such thing, therefore there is no "inertial mass", just mass”. It looks like a confusion between ‘inertial mass’ and ‘inertial force’. 
I guess we agree there is no “active” inertial force. Inertial force is the result, the sum, of the other forces, it is the effect. 
For example, on the equation 
F(inertia) = F(gravitation) 
M(i) * a = M(g) * g 
F(gravitation) is the cause 
F(inertia) is the effect 
If you disagree with the points herebefore, could you tell me where exactly you disagree ? 
Thank you, and b est regards 

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