Here is the question:

You are the juror of a case in - Anonymous - fLw7zWYD - Pastebin.com

I get (a) 43.67m/s but for (b) I am completely thrown off by the instantaneous acceleration. I've been trying to do (b) for like a week so it would be greatly appreciated if someone could show me their work.

Any help would be GREATLY appreciated!

Thanks in advance!