1. The problem statement, all variables and given/known data A stone weighing 0.2 kilograms is thrown vertically upwards with a velocity of 19.6 meters per second. Neglecting the friction of the air, calculate the kinetic and potential energy it possesses at the end of 1 second and 2 seconds respectively. 2. Relevant equations 3. The attempt at a solution I found total kinetic energy here: Total Kinetic Energy=1/2 times mass times velocity squared KE = (1/2)(0.2)(19.2) ^2 = 36.864 - just not sure how to find it after "1 and 2 seconds respectively." I know potential energy = Egrav=mgh but i dont have a height value so even rearranging doesn't work: And rearranging to solve for h=Egrav/mg = ??? How do you solve for kinetic and potential energy when you have the added component of time and missing components of height?