I applied what you done, i solved the time of it, that came out to be 17.5 seconds, which is correct. However for the distance(s) i substituted the time into the s=ut+1/2at^2 and it came out as 1225............This is not an ambiguous answer. I substituted the time into the first half of the equation the answer was 612.5, which is the correct answer. So i am a bit confused with the answers.
