The center of gravity is a complicated mathematical problem. In as easy terms as I can use, it is the point of an object where the entire weight of that object is concentrated. Look
http://answers.ask.com/Science/Other/what_is_the_c...

1. Find out how much the object weighs. If there is any added weight to the object make sure to calculate it. For example, if you want to find the center of gravity for a car with
http://www.ehow.com/how_2251654_calculatecenterg...

1. Calculate the weight of the object. When you're calculating the center of gravity, the first thing you should do is to find the weight of the object. Let's say that you're calculating
http://www.wikihow.com/CalculateCenterofGravity
