A plane launches from a height of 55 ft with an initial velocity of 234 ft per second

a) Write the position function. . s(t) - -16t + Vit + 50 b) What is the average velocity of the firework on the interval from 1 to 4 seconds? c) Write the velocity function. d) What is the velocity of the firework at 6 seconds, if it hasn't exploded by then? e) If the firework doesn't ever explode and falls to the ground, how many seconds was its j air? Round your answer to 3 decimal places. f) What is the velocity of the firework when it hits the ground intact? Round your answer to places. V