A slider C has a speed of 3 m/s as it passes point A of the guide, which lies in a horiz...

A slider C has a speed of 3 m/s as it passes point A of the guide, which lies in a horizontal plane. The coefficient of kinetic friction between the slider and the guide is μ_k = 0.60. Compute the tangential deceleration at of the slider just after it passes point A if (a) the slider hole and guide cross section are both circular and (b) the slider hole and guide cross section are both square. In case (b), the sides of the square are vertical and horizontal. Assume a slight clearance between the slider and the guide.