Figure \(P 3. 1\) is based on a multiple-flash photographic sequence of an object moving from left to right on a track, as seen from above. The time intervals between successive flashes are all the same. During which portion(s) of the motion is the object

(a) speeding up and

(b) slowing down? Explain how you know in each case.

(c) How would your answers change if the object were moving from right to left?

Data from Figure P3.1