the structure shown us subjected ti couple forces applied at points and b and th
ID: 1849751 • Letter: T
Question
the structure shown us subjected ti couple forces applied at points and b and the force applied at A is F= (8i+10j-40k) lb, determine the moment of the couple about line a. Line a has direction angles theta_x= 72 degree, theta_y=36 degree, and theta_z=60 degree,
the structure shown us subjected ti couple forces applied at points and b and the force applied at A is F= (8i+10j-40k) lb, determine the moment of the couple about line a. Line a has direction angles theta_x= 72 degree, theta_y=36 degree, and theta_z=60 degree,Explanation / Answer
moment about line a=[(ra cross F).n+(rb cross -F).n] ra=16i+36j+10k rb=-8i+24j+18k F=8+10j-40k n=0.3i+0.8j+0.5k moment=540.8 lb-in
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