(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Point A is at (0,3,0), D(0, 0, 3), C(4, 0, 0) and B(x,y,z). The bar AB is 7.09 m long and is perpendicular to the bars AC and AD. Use the cross product to determine the coordinates of x, y, and z.

2. Relevant equations

The cross product matrix thing...

3. The attempt at a solution

I found the eqations for AC and AD. I know that if I find their cross product, I will get AB, which is essentially what I'm looking for.

AC = 4i-3j+0k

AD = 0j-3j+3k

When I found the cross product of them in this form, I got it wrong. Also, I'm not sure which order to put them in, which one goes first, AC or AD? I now am attempting to convert them to unit vectors and do the cross product with those, but again, I'm not sure about the order. Help?

Thanks

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# Homework Help: Question with a Cross product

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