3. Suppose a point mass m is moving in one-dimension along the x-axis under a force given by F' = %m\\/ || At time t = 1 the object is located at = = 4+0.5 and has a velocity (1) = +0.15 m/s and zero acceleration. (a) Find x(2), #(2) and #(2) using a numerical iterative method with = 0.2 s (so 5 steps), showing the values at each step. (b) Do the same as (a) but use e = 0.1 s (so 10 steps)