An object of mass ' m ' is projected from origin in a vertical xy plane at an angle 45^° with the x - axis with an initial velocity v_0. The…

An object of mass ' m ' is projected from origin in a vertical xy plane at an angle $\displaystyle 45^{\circ}$ with the x - axis with an initial velocity $\displaystyle \mathrm{v}_0$. The magnitude and direction of the angular momentum of the object with respect to origin, when it reaches at the maximum height, will be [ $\displaystyle g$ is acceleration due to gravity]