^{2}/2. I wonder how a finite force starts moving an object at rest. The zero velocity implies zero power P=0, which implies zero kinetic energy inflow dE = 0 * dt = 0. Ultimately, as the energy does not change, the speed persists 0. In other words, the speed does not change because it is zero and it remains zero because it does not change. We cannot start off. Where is the mistake?