The tool is used to shutoff gas valves that are difficult to access. If the forc

Question

The tool is used to shutoff gas valves that are difficult to access. If the force F isapplied to the handle,
determine the component of the moment created about the z axis ofthe valve. image is located at this site and it is number 53 http://books.google.com/books?id=5hqK31A2EkcC&pg=PA145&lpg=PA145&dq=The+tool+is+used+to+shut+off+gas+valves+that+are+difficult+to+access.+If+the+force+F+is+applied+to+the+handle,+determine+the+component+of+the+moment+created+about+the+z+axis+of+the+valve.+hibbeler&source=bl&ots=shZnVD4_nq&sig=DJzT_axfV-sEKS-OKbIZU5jpVQg&hl=en&ei=nsqpSvLJNIf9nQePkvikDw&sa=X&oi=book_result&ct=result&resnum=1#v=onepage&q=&f=false The tool is used to shutoff gas valves that are difficult to access. If the force F isapplied to the handle,
determine the component of the moment created about the z axis ofthe valve. image is located at this site and it is number 53 http://books.google.com/books?id=5hqK31A2EkcC&pg=PA145&lpg=PA145&dq=The+tool+is+used+to+shut+off+gas+valves+that+are+difficult+to+access.+If+the+force+F+is+applied+to+the+handle,+determine+the+component+of+the+moment+created+about+the+z+axis+of+the+valve.+hibbeler&source=bl&ots=shZnVD4_nq&sig=DJzT_axfV-sEKS-OKbIZU5jpVQg&hl=en&ei=nsqpSvLJNIf9nQePkvikDw&sa=X&oi=book_result&ct=result&resnum=1#v=onepage&q=&f=false

Explanation / Answer

Force F = (-60i + 20j +15k) N distance r = (0.25sin30 i+ 0.25cos30 j+0.4k) m distance r = (0.125 i+ 0.216j +0.4k) m moment M = r x F moment M = (0.125 i+ 0.216j +0.4k) x (-60i + 20j +15k) moment M =2.5k-1.875j+12.96k+3.24i-24j-8i moment M =( -4.76i+25.875j+15.46k) N.m

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