document.write( "Question 1100445: if A has a magnitude of 55.9 an B has a magnitude of 42.3 find the magnitude R of the resultant and the angle that resultant makes with vector B given the angle with A is 55.5 degrees \n" ); document.write( "
Algebra.Com's Answer #715968 by jimbols(1)![]() ![]() ![]() You can put this solution on YOUR website! We can use force triangle in this situation. \r \n" ); document.write( "\n" ); document.write( "Using Cosine Law, \n" ); document.write( " R² = 55.9² + 42.3² - 2(55.9)(42.3)cos(124.5) \n" ); document.write( " R = 87.14\r \n" ); document.write( "\n" ); document.write( "Using Sine Law, \n" ); document.write( " 87.14/sin(124.5) = 55.9/sin(Ɵ) \n" ); document.write( " Ɵ; = 31.916 degrees \n" ); document.write( " |