14_ch 20 Mechanical Design budynas_SM_ch20

14_ch 20 Mechanical Design budynas_SM_ch20 -...

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14 Solutions Manual • Instructor’s Solution Manual to Accompany Mechanical Engineering Design 20-20 xf f x fx 2 / ( N w ) f ( x ) 60 2 120 7200 60 0.002899 0.000399 70 1 70 4900 70 0.001449 0.001206 80 3 240 19200 80 0.004348 0.003009 90 5 450 40500 90 0.007246 0.006204 100 8 800 80000 100 0.011594 0.010567 11 01 2 1320 145200 110 0.017391 0.014871 120 6 720 86400 120 0.008696 0.017292 130 10 1300 169000 130 0.014493 0.016612 140 8 1120 156800 140 0.011594 0.013185 150 5 750 112500 150 0.007246 0.008647 160 2 320 51200 160 0.002899 0.004685 170 3 510 86700 170 0.004348 0.002097 180 2 360 64800 180 0.002899 0.000776 190 1 190 36100 190 0.001449 0.000237 200 0 0 0 200 0 5.98E-05 210 1 210 44100 210 0.001449 1.25E-05 69 8480 ¯ x = 122.8986 s x = 22.88719 / ( N w ) f ( x ) / ( N w ) f ( x ) 55 0 0.000214 145 0.011594 0.010935 55 0.002899 0.000214 145 0.007246 0.010935 65 0.002899 0.000711 155 0.007246 0.006518 65 0.001449 0.000711
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