Correct answer: C and D. The easiest way of picking the correct kinematic equation is figuring out which variable (time, acceleration, displacement, initial velocity, or final velocity), is NOT cared for at all in the problem. Then look for which equation is missing that variable. For example, if the problem doesn’t involve displacement, look for an equation that doesn’t include displacement ( vf = v0 + at). It will also help to just memorize all the equations!
Verified by Knowlaxy Team (Jason Kuma)