Hi, my name is Stefan. Today, I'm going to be speaking on how to derive physics equations. Let's take the equation for example VFT = AT + V sub i, V being the the inition of velocity, T being time, A is acceleration and V being our velocity. Now we know that velocity is equivalent to the rate of change per unit of time and we know that that's the integral of the acceleration so when we integrate this we get VT = AT + C. Now when we let T = 0 we get our Vi, our V sub inition, our T in the beginning. So if T = O, that would be 0 and this C = V sub I. So V of T = AT + V sub I and that's how you get this equation.