A particle moves with a constant velocity parallel to the X-axis. Its angular momentum with respect to the origin.

Monjur Alahi

A particle moves with a constant velocity parallel to the X-axis. Its angular momentum with respect to the origin.

(a) is zero

(b) remains constant

(c) goes on increasing

(d) goes on decreasing.


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Salim Ahmed Kawsar

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(b) remains constant

Explanation:

 Since the particle moves with a constant velocity along a straight line, the distance of the line from the origin (r) remains constant. The linear momentum of the particle mv is constant. So the angular momentum of the particle about the origin = moment of the linear momentum about origin = mv.r = Constant.

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