University:
Michigan State University
Course:
ERG 160 | Success in Science, Technology, Engineering, and Mathematics
Academic year:

2021
Views:

418

Pages:

1
Author:

marthamanayay9qr13

COSMOS: Complete Online Solutions Manual Organization System Chapter 9, Solution 31. Area: A = 2 (10 mm )( 40 mm )  + ( 90 mm )(10 mm ) = 1700 mm 2 Part : I x = I x + Ad 2 = 1 (10 mm )( 40 mm )3 + (10 mm )( 40 mm )( 25 mm )2 12 = 303.3 × 103 mm 4 1 ( 90 mm )(10 mm )3 = 7.50 × 103 mm 4 12 Part : Ix = Ix = Part : (Same as Part ) I x = 303.3 × 103 mm 4 Thus for entire area: I x = ( 303.3 + 7.50 + 303.3) × 103 = 614.2 × 103 mm 4 I x = 614 × 103 mm 4 k x2 = Ix 614.2 × 103 mm 4 = = 361.27 mm 2 2 A 1700 mm k x = 19.01 mm

COSMOS Chapter 9 Solution 31

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