The spool, which has a mass of 3.8 kg, slides along the rotating rod. At the instant shown, the angular rate of rotation of the rod is 8 = 6 rad/s and this rotation is increasing at = 2 rad/s². At this same instant, the spool has a velocity of 3 m/s and an acceleration of 1 m/s², both measured relative to the rod and directed away from the center O when r = 0.5 m. (Figure 1) Part A Determine the radial frictional force exerted by the rod on the spool when r = 0.5 m. Express your answer to three significant figures and include the appropriate units. ? F₁ = Value Units Submit My Answers Give Up Figure 1 of 1 -2 rad/s²( = 6 rad/s O r = 0.5 m v, = 3 m/s a, = 1 m/s² Part B Determine the normal force exerted by the rod on the spool when r = 0.5 m. Express your answer to three significant figures and include the appropriate units. ? N = Value Units Submit My Answers Give Up