hi...thanks!!...u guys been great help but i am still learning how to read those graph...the graph looKS SOMETHINg like this shape...thus can anyone tell me which is the trailing edge and which is the leading edge..!!..

..thanks!!..how abt he max velocity and min velocity??...very very confused!!!
and also if the spin is zero, radius is 0.3048 and span is 16.9 for a graph of the cylinder, why izzit that the lift will be zero and the lift of ball is also zero but the lift for plate has something??/...
sorry hope these are not dumb questions