Q.
A particle moves with a constant velocity parallel to the X-axis. Its angular momentum with respect to the origin [UP CPMT 2015]
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a
is zero
b
remains constant
c
goes on increasing
d
goes on decreasing
answer is B.
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Detailed Solution
Consider the diagram.As, the particle goes with constant linear velocity, the perpendicular distance of velocity vector from the axis isconstant. So, angular momentum mvr sin θ is constant.
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