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Questions  

A particle of mass m moves along the path PC with velocity V as shown in fig. (9) . The angular momentum of the particle about O is

a
m v L
b
m v l
c
m v r
d
Zero

detailed solution

Correct option is B

We know that L=m(r×v)or |L|=mvrsin⁡θ=mv(rsin⁡θ)                                   =mv I

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