Hi! Thanks for the reply! How do you find the centre of gravity of the object? Seeing as the objects are rectangular, would it just be the centre of the rectangle? If this is true then I can attach a piece of string to that centre and thus confirm that the object tips over when the centre of gravity exceeds the base. Thats what I have been able to find out so far, however I need a detailed explanation as to WHY it tips over when the centre of gravity exceeds the base. Please help! Also I was wondering If you knew how weight distribution whilst riding a motorbike affects the tipping??????? Thanks again! Please Please help