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Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i.e., a subspace of r 3 ). explain your reasoning

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Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?