A tennis racket hits a tennis ball with a force of F=at-bt^2, where A_1 = 1280 N/ms, B_1 = 460 N/ms^2, and t is the time (in milliseconds). The ball is in contact with the racket for 2.85 ms. If the tennis ball has a mass of 58.5 g, what is the resulting velocity of the ball, v, after the ball is hit by the racket?