A particle moves with a constant velocity parallel to the Y-axis. Its angular momentum about the origin ___________.
goes on increasing
goes on decreasing
The correct option is B remains constant
Angular momentum $$L = mxv$$
where $$x$$ is the distance of the particle on x-axis from the origin and $$v$$ is the velocity. Since the particle is moving parallel to y-axis, so its distance on the x-axis from the origin remains the same and thus its angular momentum about the origin remains the same.