A ball moves in the xy-plane. At t = 0 s, it is at the origin and has initial velocity (2.11 i + -0.69 j) m/s. (Both i and j represent the unit vectors i-hat and j-hat.) The ball has a constant acceleration (-0.86 i + 2.71 j ) m/s2. What is the speed of the ball at time t = 0.96 s? Write your answer using SI units to 3 significant figures. In this space, do not include units.