On a concrete surface, there are four tires arranged in a row: a pink tire on the left, followed by a blue tire, an orange tire, and a yellow tire. The blue tire begins to move to the left. As it shifts, it collides with the pink tire, causing a noticeable push that moves the pink tire further to the side. After the collision, the blue tire and the pink tire remain close but in new positions, while the orange tire and the yellow tire remain stationary throughout the sequence.