The function s(t) = 9 -9cos(rt/3),0 sts 5 describes the position of a particle moving along a coordinate line, where s is in feet and t is in seconds. Find the acceleration function. A) a(t) = t cos(rt/3) B a(t) = n2 sin(nt/3) a(t) = 2 cot(tt/3) a(t) = r2 cos(Tt/3)

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