I did an experiment where I lifted a mass and measured the force. I know the change in height, the mass, and the work of the pull. How can I use the work-kinetic energy theorem to find the final and initial kinetic energies? I don't use 1/2mv^2, do I? I would think initial and final velocities would be 0, so I'm having a hard time understanding the difference between the initial kinetic energy and the final kinetic energy. Can I use work of the pull and the change in height to find the kinetic energies?