A particle moves with velocity m/s for

MATHEMATICS · Subjective · AP · Calculus AB · Contextual Applications of Differentiation · Contextual Applications of Differentiation

Problem

A particle moves with velocity v(t)=sin⁡ ⁣(πt4)v(t)=\sin\!\left(\dfrac{\pi t}{4}\right) m/s for 0≤t≤80\le t\le8. Identify all time(s) within this interval at which the particle changes direction.

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