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A particle of mass m moves in the xy plane with a velocity v along the straight line AB. If the angular momention of the particle with respect to origin O is LA when it is at A and LB when it is at B, then ..........(a) LA = LB (b) LA < LB (c) LA > LB(d) The relationship between LA and LB depends uopn the slope of the line AB |
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Answer» (a) LA = LB Magnitude of L is, L = mvr sin ϕ = mvd d = r sin ϕ is the distance of closest approach of the particle so the origin, as ‘d’ is same for both particles. So, LA = LB |
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