A mass \( m \) is moving with a constant velocity along a line parallel to \( x \)-axis. Its ang...

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A mass \( m \) is moving with a constant velocity along a line parallel to \( x \)-axis. Its angular momentum with respect to origin or \( z \)-axis is [IIT 1985, 97 (Cancelled); MP PET 1996;
MP PMT 1997; RPET 2000; AMU (Engg.) 2009]
(a) Zero
(b) Remains constant
(c) Goes on increasing
(d) Goes on decreasing
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