document.write( "Question 321451: Bobby can exert a force of 190 Ib. How heavy a rock can he lift if he uses a bar that is 6 feet long and places the fulcrum so that it is 9 inches from the rock? \n" ); document.write( "
Algebra.Com's Answer #230220 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 190*5.25=.75x \n" ); document.write( "997.5=.75x \n" ); document.write( "x=997.5/.75 \n" ); document.write( "x=1,330 lbs. ans. for the amount of force to lift the rock. \n" ); document.write( " |