Does someone knows how to do this exercise? With the formula it would be more than helpful!!! Need it as soon as possible How long will it take for a ball to move from rest to 23 km/h with an acceleration of 2.2 m/s^2

Give an example for each of the following situations: 1) negative acceleration, but positive velocity 2) positive acceleration and positive velocity 3) positive acceleration, but negative velocity 4) negative acceleration and negative velocity 5) positive velocity and no acceleration