Náry does not like unpleasant surprises. How far from the muzzle of an air gun does he have to stand in order to hear the shot exactly one second before he would get hit? The speed of sound is 334 m·s⁻¹, the exit velocity of the bullet is 152 m·s⁻¹, the elevation angle of the shot is 10°. Neglect air resistance. The term "heard" is considered equivalent to Náry being reached by the sound wave. The time the bullet spends inside the muzzle is also negligible. Compute the answer to metre precision. Kiki would shoot.