Find the speed at time 
of the particle that is traveling along the curve 
.
Definitions:
Unemployment Spells
Periods of time during which an individual is searching for employment but is unable to find work.
Frictional Unemployment
Temporary unemployment existing in a job market due to time taken by workers to move between jobs, including new or re-entering workers.
Structural Unemployment
Unemployment arising from a persistent mismatch between the skills of workers and the requirements of jobs, often exacerbated by technology or market changes.
Frictional Unemployment
Temporary unemployment experienced by individuals transitioning between jobs, seasons, or moving to new locations.
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