Particle's Average Velocity Calculation

What do we need to calculate the components of a particle's average velocity?

We need the change in position in the x and y directions and the time interval.

Answer:

The components of the particle's average velocity cannot be determined without the time interval.

To find the components of the particle's average velocity, we need to determine the change in position in the x and y directions and divide them by the time interval. Given that the coordinates of particle Oy are -1.4m at a certain time, we can assume that the initial position of the particle is (0, 0) and the final position is (0, -1.4). The change in position in the x direction is 0, as there is no horizontal displacement. The change in position in the y direction is -1.4m, as the particle moves downwards. Since the time interval is not provided in the question, we cannot calculate the average velocity components without that information.