Class 11 NEET Physics System of Particles and Rotational Motion

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Question : 40 of 113

Marks: +1, -0

A force

→

F

=α

^

i

+3

^

j

+6‌widehat‌k is acting at a point

→

r

=2

^

i

−6

^

j

−12‌widehat‌k. The value of α for which angular momentum about origin is conserved is

[NEET 2015]

zero
1
-1
2

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