A ball of mass m = 1 Kg is thrown from the top of a building with initial velocity \(\overrightarrow{v}\) = (20 m/s) \(\widehat{i}\) + (24 m/s) \(\widehat{j}\) at time t = 0 s. The change in the potential energy of the ball between t = 0 and t = 6s, if the ball does not hit the ground (Assume g = 10 m/s²)