3. A speed skater moves along frictionless ice in a straight line at 8 m/s. She then hits a rough patch of ice that causes her to steadily slow down. After leaving the rough patch, she continues to move at 6 m/s. Sketch velocity-time, acceleration-time, and position-time graphs for the skater.v (m/s) 4. The graph shown depicts the velocity of blood through the aorta during one heartbeat. 1.0 (a) What is the blood's acceleration during the time it is speeding up? 0.5 (b) How much further does the blood move during the slowing down phase than it does during the speeding up phase? 0 t 0 0.20 0.40 0.60