Legend3107 0 Report post Posted October 28, 2017 So the equation I am testing is: . In order to find terminal velocity (vt) I used video analysis, but I am getting a negative terminal velocity. I was just wondering if this is possible? If so, does that mean the g is also negative? I am slightly confused because from the graphs that I've seen of this equation, I expected it to be a straight line through the origin as such. However, if my terminal velocity is negative, then I will not obtain this graph. Am I supposed to take the absolute value of the terminal velocity, is there something I am doing wrong? Thank you! Share this post Link to post Share on other sites