+ 86 of 726 2/155 The slider P can be moved inward by means of the string S as the bar OA rotates about the pivot O. The angular position of the bar is given by

+ 86 of 726 2/155 The slider P can be moved inward by means of the string S as the bar OA rotates about the pivot O. The angular position of the bar is given by @ 0.4 +0.12t+ 0.06t³, where is in radians and t is in seconds. The position of the slider is given by r = 0.8 -0.1t 0.05², wherer is in meters and t is in seconds. Determine and sketch the velocity and ac- celeration of the slider at time t = 2 s. Find the an- gles a and 3 which v and a make with the positive x-axis. - So​