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21: 21. Consider the following trajectory of a moving object. Find the tangential and normal components of the acceleration. r(t) = (6 cost,6 sin t,

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21. Consider the following trajectory of a moving object. Find the tangential and normal components of the acceleration. r(t) = (6 cost,6 sin t, 18t) a = N + T (Type exact answers, using radicals as needed.)

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