Kinematics Question 284

Question: A vector A points vertically upward and B points towards north. The vector product A×B it’s [UPSEAT 2000]

Options:

A) Zero

B) Along west

C) Along east

D) Vertically downward

Show Answer

Answer:

Correct Answer: B

Solution:

Direction of vector a is along z-axis A=ak^

Direction of vector b is towards north B=bj^

Now A×B=ak^×bj^=ab(j^)

The direction is A×B it’s along west.



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