A ball is thrown vertically upward from the roof of a building 12 m tall. The ball leaves your hand at a point even with the roof railing with an

upward speed of 15m/s. On its way back down it missis the railing. Which of the falling are correct equations of motion for this problem? \bigcirc x(t)=(15 m / s) t-\frac{g}{2} t^{2} \bigcirc x(t)=-12 m-(15 m / s) t+\frac{g}{2} t^{2} \bigcirc(t)=-(15 \mathrm{~m} / \mathrm{s}) t+\frac{g}{2} t^{2} All of the above