10.2#10

Hi, I'm not sure if you can see my attempts for this problem but I've done
it a bunch of times and I can't figure out where I am going wrong with the
second part to this question. If you could give me a little guidance I
would really appreciate it thank you!

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Well, you got the speed right.  The angle is a mistake of course.   It's interesting though because, although it's close to the correct answer in an absolute sense, the relative error is about 10%.  I went through the usual list of mistakes people make in computing angles and they all gave smaller relative errors than that, so I really can't imagine how you got that answer, except maybe bad arithmetic or a typo. For instance using 13 instead of 14 would give about the answer you have. 

 

To reiterate a comment I made in an earlier post, when you submit a question like this you need to tell me what you tried so I can catch your mistake. 

Yes I can see how many times you tried to do the problem. So as far as guidance, just flailing and trying lots of guesses isn't going to help you. Stop doing that.  Stepping back and making sure you understand the math, and making sure you did the steps correctly will work better than that