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webassign.net Do not use technology. The figure below shows the graph of the velocity, in feet per second, for a particle moving along the line x = 4. WI) 3 - 3- (a) During which time interval(s) is the particle doing the following? Enter your answer using interval notation. (i) moving upward (0,1), (4,5) X (ii) moving downward (iii) at rest (b) What is the acceleration of the particle at the following times? (i) t = 2.33 ft / 5 2 (ii) t = 4.6 The I'm