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A particle moves with constant velocity The angular momentum of this particle about the origin is zero(A) always.(B) at exactly one time only.(C) only if the trajectory of the particle passes through the origin.(D) never
From this expression one can see that if the velocity of the particle is constant, the change in angular momentum would be zero.If the change of angular momentum for a particle moving with constant velocity is zero, then the angular momentum must be constant at all times.Therefore (A) is the correct option.
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