Answer
We now set the above expression again equal to 64 $\mathrm{J}$ (with $\theta$ being the unknown) but with (0) speed (which gives the state for the largest point, or "turning point" that it extend). This leads to $\theta_{\max }=79^{\circ} .$
Work Step by Step
We now set the above expression again equal to 64 $\mathrm{J}$ (with $\theta$ being the unknown) but with (0) speed (which gives the state for the largest point, or "turning point" that it extend). This leads to $\theta_{\max }=79^{\circ} .$
