A person throws an object with mass $m$ nearly vertically with an initial momentum $\vec{p} = (p_x, p_y, p_z)$. With respect to the cartesian coordinate system where the person is looking in the direction $y$, with $x$ directed to their right. Let $q$ be the elevation angle of the initial momentum (with respect to the $xy$-plane) and let $\theta$ be the angle of the initial momentum with respect to the $yz$-plane. Write parametric equations for the trajectory of the center of mass of the object.
I am completely stuck. I appreciate any help. Thanks!
HINTS