Question

The figure below shows three forces of magnitude FA=24.1 N, FB=20.4 N, and FC=27.2 N acting on an object which is free to rotate about a fixed axis at the point O as shown in the figure. The respective distances from point O are RA=4.5 m, RB=2.7 m, and RC=1.4 m. If the tangential acceleration of point A is aT=2.7, what is the rotational inertia of the object?

F 금 A FC C 135° A 160° 90° B

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Answer #1

Given FA = 24. IN FB 2014.N and Fc=27.2 N RA= 4.5m O 2.7 m 135 RB Rc plus, = 1.4m А. A 1000 To B the Corque of First we haveEelven (ata- 2.7 R 4.5m A 2.77 34,627 = I X 4.5 I= 57.72 kg-m?

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