16.82 A turbine disk weighing 50 lb rotates at a constant rate of 9000 rpm. Knowing...

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16.82 A turbine disk weighing 50 lb rotates at a constant rate of 9000 rpm. Knowing that the mass center of the disk coincides with the center of rotation O, determine the reaction at O immediately after a single blade at A, of weight 2 oz, becomes loose and is thrown off. 12 in. 16.8 A load of lumber weighing W = 25 kN is being raised by a crane. The weight of the boom ABC is 3 kN and the combined weight of the truck and driver is 50 kN as shown. Determine the maximum vertical acceleration of the lumber so that the crane does not tip over. DA. D1Z 0 2.0 m 0.6 m 0.4 m W 3 kN 2.0 m- -0.3 m C E B F H 0.9 m to t 50 kN K - 2.0 m 0.5 m 16.82 A turbine disk weighing 50 lb rotates at a constant rate of 9000 rpm. Knowing that the mass center of the disk coincides with the center of rotation O, determine the reaction at O immediately after a single blade at A, of weight 2 oz, becomes loose and is thrown off. 12 in. 16.8 A load of lumber weighing W = 25 kN is being raised by a crane. The weight of the boom ABC is 3 kN and the combined weight of the truck and driver is 50 kN as shown. Determine the maximum vertical acceleration of the lumber so that the crane does not tip over. DA. D1Z 0 2.0 m 0.6 m 0.4 m W 3 kN 2.0 m- -0.3 m C E B F H 0.9 m to t 50 kN K - 2.0 m 0.5 m