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HW8 - *4-52 Determine the moment of the force F about the...

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Unformatted text preview: *4-52. Determine the moment of the force F about the an axis. Express the result as a Cartesian vector. 3 2 6 =——i——‘ —-k "“ 7 7’+7 r=4j F=600(—gi+%j+%k)=—400i+400j+200k -2 -3 5 7 7 7 » = =1023. 1 a M“ o 4 0 6" 400 400 2 M... = 1028.601“): {-441 i—294j+882 k} 1b- a Ans 4-63. Determine the magnitude of the moment of the force F = {SOi - 20j — 80k} N about thebase line CA of the tripod. _ {—2i + zj} ““ _ Jc—mz + (2)2 um = {—0.707i + 0.7075} ——0.707 0.707 0 2.5 0 4 50 —20 —80 MCA : uCA ~(rAD x F) = [MCA|=226N~m ' Ans ...
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