Question

A force F = αˆi + 3ˆj+ 6kˆ is acting at a point
r = 2iˆ - 6ˆj-12kˆ . The value of α for which angular
momentum about origin is conserved is : [2015 RS]
(a) 2 (b) zero
(c) 1 (d) –1

Answer 1

Answer:

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Answer 2

The answer is

(d) –1

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