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## "Graphical" Vector Problem (What are they asking for?)

1. The problem statement, all variables and given/known data
Here is the problem statement. I honestly don't understand what it is they are asking for? Do they want actual numbers? Am I supposed to measure the lengths with a ruler or something? I know it's easy once I interpret the question correctly

How would you interpret this one?
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 Recognitions: Gold Member Homework Help Hey, that vector A in part (c) is bent. Must have a non-zero curl Yup, that's what I would do. Draw them carefully, construct the corresponding parallelograms and figure out the alpha and beta by measuring to scale things. "Trace" them certainly suggests that.

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 Quote by LCKurtz Hey, that vector A in part (c) is bent. Must have a non-zero curl Yup, that's what I would do. Draw them carefully, construct the corresponding parallelograms and figure out the alpha and beta by measuring to scale things. "Trace" them certainly suggests that.
Haha! Thanks LCKurtz! Don't quit your day job (assuming you have one!)!

Mentor

## "Graphical" Vector Problem (What are they asking for?)

By "graphical means" they mean for you to extend the vectors A and B so that the lengthened vectors form two sides of a parallelogram whose diagonal is C. You'll need to find the lengths of A and B with a ruler so that you can determine the values of $\alpha$ and $\beta$ so that $\alpha$A + $\beta$B = C.

For example, if you have to double the lengths of A and B to form the parallelogram, then $\alpha$ = $\beta$ = 2.