The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 1 for r(t) = (9t - 2t4)i  + (6 - t)j + (3t2 - 5t)k

A. a(1) = -24i - j + 6k
B. a(1) = -6i + 6k
C. a(1) = 24i + 6k
D. a(1) = -24i + 6k


Answer: D

Mathematics

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