16-15. The 50-mm-radius pulley A of the clothes dryer rotates with an = (270) rad/s², where 04 is in radians. Determine its angular acceleration when t = 1 s, starting from rest. an angular acceleration of 50 mm

The outer radius of the spool is R = 0.65 m and the radius of the inner hub is r = 0.35 m. Determine the magnitude of the acceleration of point A if ao = {(0.4)i} m/s?, vo = {(1)i} m/s and the spool rolls without slipping. The answers are given in m/s?. Note that O and A are at the same height. A R

The cord, which is wrapped around the disk, is given an acceleration of a=(12t)m/s2, where t is in seconds A) Starting from rest, determine the angular displacement of the disk, measured clockwise, when  t  = 3  s   B) Starting from rest, determine the angular velocity of the disk, measured clockwise, when  t  = 3  s   C) Starting from rest, determine the angular acceleration of the disk, measured clockwise, when  t  = 3  s  .

= At the instant shown rod AB has an angular velocity WAB 4 rad/s and an angular acceleration AB 2 rad/s2. Determine the angular velocity and angular acceleration of rod CD at this instant. The collar at C is pin connected to CD and slides freely along AB. = a) using the relative motion analysis and the contact conditions. A 4 rad/s AB= 2 rad/s² WAB 60° 0 = 0.75 m -0.5 m В B D