10.3 #14, first pass

Hello Tom!

I am having problems with finding what components of F are perpendicular and parallel to v. My initial answer was that the component -16j is perpendicular to v but the system is telling me I am wrong because "the first and second coordinates are wrong". I rephrased my answer to 0i-16j and to <0, 16> without success. I had similar issues with the parallel components; I started with the answer 0i and the system rejected it, as well as 0i-0j and <0, 0>, with the same message. Am I missing something or is the system being weird?

Thanks!
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OK, you're trying to do something, which experimenting, and that's is a good start. On the other hand you're trying anything you can think of, except maybe a strategy to figure out how to understand what you should do here.


Let me say, I see this a lot. Let me point out though, that your boss is expecting to pay you to figure out the answers to the problems she/he has, and is most definitely not expecting to pay to say "I don't know what to do". In fact you'll be expected to develop information sources on your own, and use them.


So my hint to you is this: Where do you think you could find the information you'll need to understand this problem? In fact here's another hint: what do you suppose those numbers up at the top of the problem could tell you about where to look?


Tell me what you come up with and get back to me, and we'll have another go-round on this.