Kinematics Question 294

Question: Two vector A and B have equal magnitudes. Then the vector A + b is perpendicular to

Options:

A) x-axis

B) y-axis

C) z-axis

D) Line at equal angles to all the three axes

Show Answer

Answer:

Correct Answer: A

Solution:

L=r×p=|i^j^k^121342|

=j^2k^

i.e. the angular momentum is perpendicular to x-axis.



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