The 0.5 kg collar slides on the circular rod AB that lies in the y: vertical plane, as shown below. The spring attached to the collar has an unstretc-hed length of 240 mm, and its stiffness is k=80 +last digit of your Student ID number (SID) (in Mm) (e. g. for SlD=543004567, k =80+7=8T me). If the collar is released from rest at A , determine the speed with which it arrives at B. Neglect friction