Questions
A particle of mass m moves in the XY-plane with a constant velocity ‘V’ along the straight line . If the angular momentum of the particle with respect to origin O is when it is at A, and when it is at B, then
detailed solution
Correct option is B
Since the particle is moving on a straight line with a constant speed, the velocity will remain constantAs we know L→=r→×mv→⇒L→=mvr r= Perpendicular distancev= Speedm= MassWe can see at point A and B the product mvr is constant.Hence L→A=L→B⇒LA=LB Therefore, the correct answer is (B).Talk to our academic expert!
Similar Questions
A particle of mass m is projected with velocity v at an angle q with the horizontal. Find its angular momentum about the point of projection when it is at
the highest point of its trajectory.
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