(20 pts) A concrete block is lifted by a hoisting mechanism in which the cables are securely wrapped around their respective drums. The drums are fastened together and rotate as a single unit at their center of mass O. Combined mass of drum is 150 kg, and. radius of gyration at O is 450 mm. A constant tension of 1.8 kN is maintained in the cable by the power unit at A. Determine the vertical acceleration of the block and the resultant force on the bearing at O.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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4. (20 pts) A concrete block is lifted by a hoisting mechanism in which the cables are
securely wrapped around their respective drums. The drums are fastened together and
rotate as a single unit at their center of mass O. Combined mass of drum is 150 kg, and
radius of gyration at O is 450 mm. A constant tension of 1.8 kN is maintained in the
cable by the power unit at A.
Determine the vertical acceleration of the block and the resultant force on the bearing
at O.
600 mm
300 mm
P = 1.8 kN
m = 150 kg
ko = 450 mm
%3D
45°
300 kg
Transcribed Image Text:4. (20 pts) A concrete block is lifted by a hoisting mechanism in which the cables are securely wrapped around their respective drums. The drums are fastened together and rotate as a single unit at their center of mass O. Combined mass of drum is 150 kg, and radius of gyration at O is 450 mm. A constant tension of 1.8 kN is maintained in the cable by the power unit at A. Determine the vertical acceleration of the block and the resultant force on the bearing at O. 600 mm 300 mm P = 1.8 kN m = 150 kg ko = 450 mm %3D 45° 300 kg
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