Use the Figure to Answer the Next Problem

question 21

Multiple Choice

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?

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Definitions:

Independent Variable

A variable that is manipulated or changed in an experiment to determine its effect on a dependent variable.

Dependent Variable

In an experimental setting, the variable that is being tested and measured, which is expected to change as a result of manipulations in the independent variable.

Independent Variable

In experimental and research settings, the variable that is manipulated or changed to observe its effects on the dependent variable.

Exercise

Physical activity that is planned, structured, repetitive, and aimed at improving or maintaining physical fitness and overall health.