After studying the motion of a ball rolling on a straight line as shown in figure

Find the distance and displacement covered when it rolls from P to Q and then to R (i.e., P to Q to R).

After studying the motion of a ball rolling on a straight line as shown in figure

Find the distance and displacement covered when it rolls from P to Q and then to R and finally come back to P (i.e., P to P) (Take, P as reference point)

Give one similarity and one dissimilarity between the two graphs.