Practice Questions Q1. Examine the graph for an athlete using high-intensity Velocity vs. Time for HIT interval training (HIIT). 12 a) Describe the motion of the athlete using values from the graph. a velocity (m/s [N]) 5 10 15 20 25 30 35 40 time ( s ) b) During which time interval(s) c) During which time interval(s) does the athlete have a constant does the athlete have a constant velocity? acceleration? d) Determine the different accelerations for the time intervals identified in part c. 12 15