I'm gonna show you a few ways to find the instantaneous velocity that don't require the use of calculus the first way is so simple that it's kind of obvious if you're lucky enough to have a case where the velocity of an object doesn't change then the formula for average velocity is just gonna give you the same number as the instantaneous velocity at any point in time if your velocity is changing one way you can find instantaneous velocity is by looking at the motion on a x versus t graph the slope at any particular point on this position versus time graph is gonna equal the instantaneous velocity at that point in time because the slope is gonna give the instantaneous rate at which X is changing with respect to time a third way to find the instantaneous velocity is for another special case where the acceleration is constant if the acceleration is constant you can use the kinematic formulas to find the instantaneous velocity v at anytime t