This is my attempt at trying to work out a physics problem for homework which even though I tried showing this to a friend and got help at my university's physics tutorial center, I unfortunately couldn't figure out what the correct answer was until the following day via when I viewed the answer key they had on the site (WebAssign). I had my process right but I think I had some errors with my numbers (like not plugging in enough zeros in the calculator or something) which I think threw everything off. I literally took this photo very close to the end of the day.