document.write( "Question 636729: A crowbar is 4 1/2 feet long. Where must the fulcrum be placed so that a weight of 1600 pounds can be moved by exerting a force of 200 pounds? \n" ); document.write( "
Algebra.Com's Answer #401190 by sachi(548)![]() ![]() You can put this solution on YOUR website! let the wt 1600 lb is at x' from fulcrum & the force is at (4.5-x)' \n" ); document.write( "so 1600*x=200*(4.5-x)=900-200x \n" ); document.write( "or 1800x=900 \n" ); document.write( "or x=900/1800=0.5' \n" ); document.write( "7 the force is at 4.5-.5=4' ans \n" ); document.write( " |