The spool, which has a mass of 2 kg, slides along the smooth horizontal spiral rod, r = (0.4θ) m, where θ is in radians. If its angular rate of rotation is constant and equals θ̇ = 6 rad/s, determine the horizontal tangential force P needed to cause the motion and the horizontal normal force component that the spool exerts on the rod at the instant θ = 45°.

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8 = 6 rad/s P