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A particle of mass m is projected with a...

A particle of mass m is projected with a velocity v making an angle of `45^@` with the horizontal. The magnitude of the angular momentum of the projectile abut the point of projection when the particle is at its maximum height h is.

A

`(sqrt(3))/(2)(mv^(2))/(g)`

B

zero

C

`(mv^(3))/(sqrt(2)g)`

D

`(sqrt(3))/(16)(mv^(3))/(g)`

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The correct Answer is:
D
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