Equations of linear motion

Enter values for 3 out of 5 fields: displacement, initial velocity, acceleration, time, final velocity

Kahn Academy is a free site with videos of a guy explaining this stuff clearly.

Here is a link to their video explaining how to get displacement from time and velocity

If you don't understand some of the basic concepts, like what displacement, velocity, or acceleration are, just look at their other videos here

How did you do that?