COSMOS: Complete Online Solutions Manual Organization System
Chapter 3, Solution 22.
Have
M A = rC/ A × F
where
rC/ A = ( 215 mm ) i − ( 50 mm ) j + (140 mm ) k
Fx = − ( 36 N ) cos 45° sin12°
Fy = − ( 36 N ) sin 45°
Fz = − ( 36 N ) cos 45° cos12°
∴ F = − ( 5.2926 N ) i − ( 25.456 N ) j − ( 24.900 N ) k
and
i
j
k
M A = 0.215
− 0.050
0.140 N ⋅ m
− 5.2926 − 25.456 − 24.900
= ( 4.8088 N ⋅ m ) i + ( 4.6125 N ⋅ m ) j − ( 5.7377 N ⋅ m ) k
M A = ( 4.81 N ⋅ m ) i + ( 4.61 N ⋅ m ) j − ( 5.74 N ⋅ m ) k W
.
COSMOS Chapter 3 Solution 22
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