Assignment 15. Sketch a v - t graphs to match each of the following descriptions a ) Walking slowly in the positive direction away from the origin. b) Walking slowly in the positive direction toward the origin. c) Walking quickly in the negative direction d) Walking quickly in the negative direction away from the origin and then stopping. and then walking slowly in the positive direction. 16. Velocity of a skateboarder going down a hill. a) What is the acceleration of the skateboarder? velocity (m/s [downhill]) b) What is the displacement of the skateboarder? 6 8 10 time (s ) Page 9 of 24