Q5. a) A train moves slowly along a straight portion of track according to the graph of position versus time shown in figure. Find (a) the average velocity for the total trip, (b) the average velocity during the first 4.00 s of motion, (c) the average velocity during the next 4.00 s of motion, (d) the instantaneous velocity at t = 2.00 s, and (e) the instantaneous velocity at t = 9.00 s.
d (m) POSITION vs. TIME
TIME (seconds)