Honors Free Fall Lab

The velocity vs time graph should be a straight line and so it is its own tangent. I wanted you all to realize this and to think about the fact that your velocity graph had a constant slope and what this means about the acceleration. The velocity graph should cross the vertical axis a bit above zero since the weight was already in motion at what you used as your zeroth data ( length = 0) point. In other words you started using data a few intervals into the free fall; you did not start using data from the very beginning of the fall, so the velocity at your zeroth length point was already greater than zero. Hope this helps and next time do the lab sooner, while it is all fresh.