(Solved): A large cannon is fired from ground level over level ground at an angle of \( 15^{\circ} \) above t ...

A large cannon is fired from ground level over level ground at an angle of \( 15^{\circ} \) above the horizontal. The muzzle speed is \( 1,218 \mathrm{~m} / \mathrm{s} \). Neglecting air resistance, the projectile will travel what horizontal distance, in kilometers, before striking the ground? Take \( \mathrm{g}=9.8 \mathrm{~m} / \mathrm{s}^{2} \). Note: \( 1.0 \mathrm{~km}=1000 \mathrm{~m} \). Please round your answer to two decimal places.