According to basic concepts of particle rotation problems and rigid bodies, analyze the statements and determine which of them are true. I - in a circular motion, the linear velocity vector is always perpendicular to the resulting acceleration vector; II - if a particle performs a circular movement (of radius R) with constant angular velocity, the tangential acceleration over it is null; III - the Moment of Inertia of a particle system is a scalar quantity whose value is independent of the choice of rotation axis; Choose one: a) Only I b) Only I and III c) Only II and III d) Only I and II e) None of the alternatives are true f) Only II g) All alternatives are true h) Only the III

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