MHT CET 2023 Physics question

A mass 'M' is moving with constant velocity parallel to X- axis. Its angular momentum with respect to the origin is

(A)constantCorrect
(B)zero
(C)decreasing
(D)increasing

Answer: (A)

Solution

Angular momentum about the origin is , with magnitude , where is the perpendicular distance of the line of motion from the origin. The mass moves parallel to the X-axis at a fixed height y, so stays

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Question ID VK-098138