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Author Topic:   gravity
Dogmafood
Member
Posts: 1814
From: Ontario Canada
Joined: 08-04-2010
Member Rating: 2.7


Message 4 of 81 (688088)
01-18-2013 11:53 PM
Reply to: Message 3 by AZPaul3
01-18-2013 9:42 PM


Equivalence Principal
From your link

quote:
Gravitation, or gravity, is the natural phenomenon by which physical bodies appear to attract each other with a force proportional to their masses.

and

quote:
Equivalence principle
The equivalence principle, ... expresses the idea that all objects fall in the same way. The simplest way to test the weak equivalence principle is to drop two objects of different masses or compositions in a vacuum, and see if they hit the ground at the same time.

If the attractive force of gravity is proportional to the mass of two bodies, why does an object of greater mass not fall quicker?


This message is a reply to:
 Message 3 by AZPaul3, posted 01-18-2013 9:42 PM AZPaul3 has responded

Replies to this message:
 Message 5 by Dr Adequate, posted 01-19-2013 12:33 AM Dogmafood has responded
 Message 6 by AZPaul3, posted 01-19-2013 1:11 AM Dogmafood has acknowledged this reply
 Message 10 by NoNukes, posted 01-19-2013 3:01 AM Dogmafood has responded
 Message 11 by petrophysics1, posted 01-19-2013 3:59 AM Dogmafood has acknowledged this reply

  
Dogmafood
Member
Posts: 1814
From: Ontario Canada
Joined: 08-04-2010
Member Rating: 2.7


Message 7 of 81 (688103)
01-19-2013 2:03 AM
Reply to: Message 5 by Dr Adequate
01-19-2013 12:33 AM


Re: Equivalence Principal

This message is a reply to:
 Message 5 by Dr Adequate, posted 01-19-2013 12:33 AM Dr Adequate has not yet responded

  
Dogmafood
Member
Posts: 1814
From: Ontario Canada
Joined: 08-04-2010
Member Rating: 2.7


Message 13 of 81 (688121)
01-19-2013 9:20 AM
Reply to: Message 10 by NoNukes
01-19-2013 3:01 AM


Re: Equivalence Principal
Remember F=ma.

Well yes now I do remember it. I also have some vague recollection of having graduated from high school. I have a mind like an etch-a-sketch. While this keeps things fresh and interesting I sometimes feel like I have covered this ground before.


This message is a reply to:
 Message 10 by NoNukes, posted 01-19-2013 3:01 AM NoNukes has acknowledged this reply

  
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