m 4 The distance s that an object falls varies directly with the square of the time t of the fall If an object falls 16 feet in one second how long for it to fall 144 feet Follow these steps to help you solve the question a Write a function s t and use k as the proportionality constant b Find the constant of proportionality k and write the function s t If necessary round the value of k to two decimal places c Use your function from part b to answer the question