MadSci Network: Physics

Subject: why isn't gravity infinite?

Date: Tue Feb 21 18:02:38 2006
Posted by craig
Grade level: 10-12 School: hse
City: Indianapolis State/Province: IN Country: USA
Area of science: Physics
ID: 1140570158.Ph

The equation for gravity implies that when two objects' centers of gravity are 
0 distance from eachother, the gravity is infinite. However, when you put 
something like a ball into something donut-shaped like a hula hoop, their 
centers of gravity are 0 apart and yet you can still separate them.  Why is 

Re: why isn't gravity infinite?

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