2/121 The figure shows a portion of a plate cam used in the design of a control mechanism. The motion of pin P in the fixed slot of the plate

cam is controlled by the vertical guide A, which travels horizontally at a constant speed of 6 in./sec over the central sinusoidal portion of the slot. Determine the normal component of acceleration when the pin is at the position x = 2 in.

Fig: 1

Fig: 2