Example 5:
An object with an initial speed of vA = 6 m/s accelerates from point A at
a rate of 1.4 m/s². After 10 seconds, when the object reaches to point B,
it moves with constant speed up to point C. After that point it slows
down at a rate of 2.5 m/s2 and then stops at point D.
i. Find the distances, d, and d₂.
ii. Find the total time elapsed between points A and D