Impulse from a Time-Varying Force

A 57 g tennis ball, initially at rest, is struck by a racket. The force exerted on the ball by the racket as a function of time is given by $F(t) = 200t(0.03-t)$ N for the interval $0 \leq t \leq 0.03$ s. What is the speed of the ball immediately after the impact?