Find the speed of a particle with the given position function. 
Definitions:
Psychology
The scientific study of the human mind and its functions, especially those affecting behavior in a given context.
Professional Activities
Tasks or duties performed that are related to one's profession or job, often contributing to career development.
Psychologists
Scientists or practitioners who specialize in the study of the mind and behavior, focusing on understanding how human beings think, feel, and act.
Structuralist Approach
A method of analysis focused on the elements of consciousness and how they are organized.
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