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Questions  

A particle of mass m is projected with a velocity v making an angle of 450 with the horizontal. The magnitude of angular momentum of projectile about the point of projection when the particle is at its maximum height h is

a
zero
b
mvh2
c
mvh
d
2mvh

detailed solution

Correct option is B

The magnitude of angular momentum,  L=mvr⊥⇒  L=mvh2

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