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)\"\" \"About 
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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.
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