What makes it difficult to start rolling a large boulder?

Subject: What makes it difficult to start rolling a large boulder?

Date: Thu Jan 6 18:51:23 2005
Posted by Jennifer
Grade level: 7-9 School: Fisherville Junior High Shool
City: Toronto State/Province: Ontario Country: Canada
Area of science: Physics
ID: 1105059083.Ph

Message:


I think if the question is asked normally it wouldn't be so difficult but by 
thinking about it scientifically, it's kind of complicating. 
Is it because the mass of the matter is a lot and is being pulled down due to 
gravity, or is there more to it?

Re: What makes it difficult to start rolling a large boulder?

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