A vertical-launch rescue flare is fired from the deck of a stationary ship. It rises vertically, reaches its maximum height, and falls back down, returning to its initial launch level exactly 4.6 s after firing. Air resistance is negligible.
What is the total distance travelled by the flare during this flight?
26 m26\text{ m}26 m
52 m52\text{ m}52 m
104 m104\text{ m}104 m
208 m208\text{ m}208 m
