A 6.36 kg bowling ball rolls at 0.155 m/s [N] onto the rack where the bowler picks up his or her ball before throwing. In the above scenario, the 6.36 kg ball hits a 7.27 kg stationary ball, which immediately moves off at 0.140 m/s [N]. What is the velocity of the first ball immediately after the collision? (Ignore any rotational effects.)