A ball is thrown at an angle θ

A ball of mass $m=$  g is thrown at an angle $\theta=$ ° from horizontal. The ball has an initial velocity at $t=0$ of $|\vec{v}_0|=$   m/s. The initial position of the ball at $t=0$ is $\vec{r}_0=0$. What is the position vector $\vec{r}(t)$ that describes the motion of the ball? The acceleration of gravity is 9.81 m/s². Neglect friction.