document.write( "Question 980773: Please help me with this problem:\r
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document.write( "Two forces act on a point. One force is 38 newtons. The other force is 16 newtons. The angle between the two forces is 48°. Find the magnitude of the resultant force in newtons.\r
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document.write( "Enter answer accurate to four decimal places.\r
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document.write( "Thank you.\r
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Algebra.Com's Answer #601828 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Two forces act on a point. One force is 38 newtons. The other force is 16 newtons. The angle between the two forces is 48°. Find the magnitude of the resultant force in newtons.\r \n" ); document.write( "\n" ); document.write( "Enter answer accurate to four decimal places. \n" ); document.write( "------------------------- \n" ); document.write( "Make a parallelogram with the 2 vectors. \n" ); document.write( "The resultant force is the long diagonal. \n" ); document.write( "The angle opposite the diagonal is 180 - 48 = 132 degs. \n" ); document.write( "-------- \n" ); document.write( "Use the Cosine Law: \n" ); document.write( "r^2 = 38^2 + 16^2 - 2*38*16*cos(132) \n" ); document.write( " \n" ); document.write( " |