Question

Mathematically, for two vectors A and B of any magnitude, the cross product of both, i.e. AxB = given by:

(a) |A||B|sinØ

(b) |A||B|

(c) |A||B|cosØ

(d) |A||B|sin(180°+Ø)

I had been asked this question in an online quiz.

Asked question is from Dot Product and Cross Product in chapter Force Vectors of Engineering Mechanics

Answer 1

The correct choice is (a) |A||B|sinØ

Explanation: The cross product of two vectors gives a vector which is perpendicular to both of the vectors. And the mathematic equation for the same is given by |A||B|sinØ. And the dot product of the same by any of the other two vectors will give the answer zero, as perpendicular.