A square plate ABCD rotates at aconstant angular speed about an unknownpoint in its plane. At the instant shown,the velocities of the two corner points Aand D are*vA D ??2 ft=s.{OC |O/ and*vD D??.2 ft=s/O{, respectively.
a) Find the center of rotation of theplate.
b) Find the acceleration of the centerof mass of the plate.