Kinematics Question 257

Question: The angle between the vectors A and B is θ. The value of the triple product A.(B×A) it’s [CBSE PMT 1991, 2005]

Options:

A) A2B

B) Zero

C) A2Bsinθ

D) A2Bcosθ

Show Answer

Answer:

Correct Answer: B

Solution:

Let A.(B×A)=A.C

Here C=B×A Which is perpendicular to both vector A

and B \ A.C=0



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