A system consists of three identical 19.32-lb particles A, B, and C. The velocities of the particles are, respectively, vA = vA j, vB = vB i, and vC = vCk, and the magnitude of the linear momentum L of the system is 9 lb∙s. Knowing that HG = HO, where HG is the angular momentum of the system about its mass center G and HO is the angular momentum of the system about O, determine

(a) The velocities of the particles,

(b) The angular momentum of the system about O.

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