Use the figure to answer the next problem. A spring of negligible mass and spring constant k is attached to the wall on one end,and the other end is attached to the center of mass axis of a solid sphere of mass m and radius r.The spring is stretched a distance A from equilibrium and let go.The sphere rolls freely on a smooth surface. 
-What is the rotational kinetic energy when the sphere is at the equilibrium position?
Definitions:
Coefficient Of Determination
The coefficient of determination, denoted as R², measures the proportion of the variance in the dependent variable that is predictable from the independent variables in a regression model.
Coefficient Of Correlation
A mathematical metric that determines both the magnitude and trend of the association between two factors.
Coefficient Of Correlation
A measure that determines the strength and direction of a linear relationship between two variables, typically denoted as 'r'.
Linear Relationship
A type of relationship between two variables where the change in one variable is directly proportional to the change in the other variable.
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