Homework Help: Physics

Posted by Sarah on Tuesday, December 27, 2011 at 8:03am.

2. We have two vectors that line in the x-y plane. If we take the cross-product of those two
vectors we know that
a. the magnitude of the cross-product will always be equal to the product of the
magnitudes of the two vectors.
b. the magnitude of the cross-product will always be greater than the product of the
magnitudes of the two vectors.
c. the magnitude of the cross-product will always be less than the product of the
magnitudes of the two vectors.
d. the cross-product vector will be perpendicular to the first vector and in the x-y
plane.
e. the cross-product vector will be in either the +z or -z direction.

Is the answer E

Physics - Steve, Tuesday, December 27, 2011 at 10:25am
yes, since it is perpendicular to both vectors.

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