im working on a lab and i have to determine the initial velocity of gliders that we pushed down an airtrack. the only data that was recorded is the change in x and time. eg. change in x = .3 meters t= 1.1 seconds i've looked through all the equations i could think of to find the answer to this, but they all require more than one variable. if i could even get the slightest bit of help that would be amazing.