S 7. A particle moves along a horizontal line. Let a (t) = 4 cost + 2 sint be the acceleration function. Let = 0 be the initial position, and let v (0) = 0 be the initial velocity. Determine the velocity function v (t) and the position function s (t). 8 A stone dropped from the top of the Willis Tower follows position functions (t) = 16+²+1450 where

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