Question

a vector A points vertically upward and points towards north.the vector product A cross B is along which direction?

Answer 1

Answer:

Best way to do is draw diagram

Now see vector A is along k and B is j direction , so

$\vec a \times \vec b = \hat k \: \times \hat j = - \: \hat i$

So resultant is in - I or West direction.

** You could also use your right thumb , direction of your fingers upwards then bent them to north , your thumb will be pointing towards west .

Answer 2

Answer:

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