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December 20, 2014

Homework Help: PHYSICS - please help!!!

Posted by sam on Thursday, March 29, 2007 at 10:04pm.

In the product F = qv B , take q = 4,
v = 2.0i + 4.0j + 6.0k and F= 136i -176j + 72k.
What then is in unit-vector notation if Bx = By?

I still can't get the right answer though...

I am stuck here:
136i-176j+72k=(8i+16j+24k)x(Bxi+Byj+bzk)

How do I solve for Bxi + Byj + Bzk???
Everything that I have tried is incorrect. Please help. thanks.


that should be F=qv x B. not dot product.

thanks, i figured it out.

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