# A particle of mass m is moving with constant velocity ˆ vi parallel to the x-axis at distance b from origin. The angular momentum of the particle about origin when particle is at (a, b) isA particle of mass m is moving with constant velocity ˆ vi parallel to the x-axis at distance b from origin. The angular momentum of the particle about origin when particle is at (a, b) is

$velocity=v\hat{i}\phantom{\rule{0ex}{0ex}}positionvector=a\hat{i}+b\hat{j}\phantom{\rule{0ex}{0ex}}angularmomentum=m\left(a\hat{i}+b\hat{j}\right)\times v\hat{i}dothecrossproduct.\phantom{\rule{0ex}{0ex}}=mvb\hat{k}istheangularmomentumoftheparticle.\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}regards$

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