The velocity ( in feet per second ) of a bouncing ball was recorded every second . The table shows the velocity for each second . Time (sec ) 1 23 4 Velocity (ft /sec) 6 210 a. What is the average velocity of the bouncing ball over the seconds? b. What is the highest recorded speed of the bouncing ballIs the ball going up or down at this speed ? c. During the second period, did the ball spend more time going up or going down? Explain your reasoning d. Between which two seconds did the ball change from going up to going down? Explain your reasoning .