EXERCISESuppose a particle moves along the x-axis. Its x-coordinate varies with time according to the expression x = 34.0 + 4.0t + 1.2t, where x is in meters and t is in seconds.Hint(a) Determine the displacement Ax of the particle (in m) in the time interval t = 9 s to t = 20 s.Ax=m(b) Calculate the average velocity (in m/s) in the time interval t = 9 s to t = 20 s.v =m/s(c) Find the instantaneous velocity of the particle (in m/s) at t = 18.4 s.m/s

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