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A force vec F = prop hat i + 3 hat j + 6...

A force `vec F = prop hat i + 3 hat j + 6 hat k` is acting at a point `vec r = 2 hat i - 6 hat j - 12 hat k`. The value of `prop` for which angular momentum about origin is conserved is.

A

1

B

-1

C

2

D

zero

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The correct Answer is:
B
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TARGET PUBLICATION-SCALARS AND VECTORS-Competitive Thinking
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  2. Which of the following relation is not correct?

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