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A body is uniformly rotating about an axis fixed in an inertial frame of reference. Let A ? be a unit vector along the axis of rotation and B ? be the unit vector along the resultant force on a particle P of the body away from the axis. The value of A ? .B ? is -

A body is uniformly rotating about an axis fixed in an inertial frame of reference. Let A
?
be a unit vector
along the axis of rotation and B
?
be the unit vector along the resultant force on a particle P of the body
away from the axis. The value of A
?
.B
?
is -

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