Fill in the blank.

Walking uniformly along the sidewalk, you cover 11 m in 10 seconds at a constant ["speed", "acceleration"] of ["0.9", "1.0", "1.1", "10", "11"] ["s", "m", "m/s", "m/s/s"]. Startled by the sight of a skunk in the bushes, you suddenly cover 1.6 m in 1.0 seconds then an additional 2.6 m in 1.0 more seconds. During this time after the startle, you are traveling with constant ["speed", "acceleration"] of ["1.0", "1.6", "2.6", "4.2", "6.2"] ["s", "m", "m/s", "m/s/s"].