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An object begins to move along the y axis and its position is given by the equation y = Sl.'2 4t 3, with y in

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An object begins to move along the y axis and its position is given by the equation y = Sl.'2 4t 3, with y in meters and t in seconds. (Express your answers in vector form.) (a) What is the position of the object when it changes its direction? 3.8j m V (b) What is the object's velocity when it returns to its original position at t = 0? 4j m/s s7

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