Circular Motion. Circular Motion Terms. The point or line that is the center of the circle is the axis of rotation . If the axis of rotation is inside the object, the object is rotating (spinning) . If the axis of rotation is outside the object, the object is revolving.
Change in angle
v = r w
Rotational Motion of an Object
Center of GravityCenter of Mass
"All of science is nothing more than the refinement of everyday thinking."-- Albert Einstein
Point of an object located at the average position of weight.
Objects rotate around their center of gravity.
Center of Gravity
Place the cone on its side and its center of gravity is neither raised nor lowered with displacement.
This is called Neutral Equilibrium.
A book that is standing is at stable Equilibrium and so is a book laying flat. Which one is more stable and why?
Why does a tightrope walker use a long poll that bends downward?