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The expression for momentum in cylindrical coordinates is given by the formula:

vecp m vecv m vrho hatrho m vphi hatphi m vz hatz

where ( m ) is the mass of the object, ( vecv ) is the velocity vector, ( vrho ) is the radial component of velocity, ( vphi ) is the azimuthal component of velocity, and ( vz ) is the vertical component of velocity.

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