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2) (a) Ifthe position of a particle is given by x = 20! 5?, where x is in meters and t is in seconds, Where
2) (a) Ifthe position of a particle is given by x = 20! 5?, where x is in meters and t is in seconds, Where if ever, is the particle's velocity zero? (b) When is its acceleration a zero? (c) For what time range (positive or negative) is a negative? (d) Positive? (e) Graph x(r), 1=(t), and (10')
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