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

2022
Views:

436

Pages:

1
Author:

Tarime9wn

COSMOS: Complete Online Solutions Manual Organization System Chapter 9, Solution 85. From Problem 9.79: π Ix = 8 tan 2θ m = − = Then Iy = I xy = Problem 9.67: Now, Equation (9.25): a4 π 2 a4 1 4 a 2 2I xy Ix − I y =− π 8 1  2  a4  2  a4 − π 2 a4 8 = 0.84883 3π 2θ m = 40.326° and 220.326° or θ m = 20.2° and 110.2° Also, Equation (9.27): I max, min = = Ix + I y 2 2  Ix − I y  2 ±   + I xy 2   1π 4 π 4  a + a  2 8 2  2 ±  1  π 4 π 4  1 4   a − a  +  a  2  2  2  8 2 = ( 0.981748 ± 0.772644 ) a 4 or I max = 1.754a 4 and I min = 0.209a 4 By inspection, the a axis corresponds to Imin and the b axis corresponds to Imax.

COSMOS Chapter 9 Solution 85

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