The slotted arm revolves in the horizontal plane about the fixed vertical axis through p...

The slotted arm revolves in the horizontal plane about the fixed vertical axis through point O. The 3-lb slider C is drawn toward O at the constant rate of 2 in./sec by pulling the cord S. At the instant for which r = 9 in., the arm has a counterclockwise angular velocity ω = 6 rad/sec and is slowing down at the rate of 2 rad/sec². For this instant, determine the tension T in the cord and the magnitude N of the force exerted on the slider by the sides of the smooth radial slot. Indicate which side, A or B, of the slot contacts the slider.