#$&* course Phy 231 11:58 a.m. on 9/3/14 If a ball roles down a 56 cm_f down on an incline in four half cycles, then the slope of the line is equal to 14/.5 or 28 cm/cycle^2 which is also the average velocity. My graph is in half intervals on the x-axis and on the y-axis, I made intervals in 14's. Given the time and position, you can make a graph of the function for velocity and from the velocity, you can derive to find the acceleration.