







Balancing on a fulcrum (net torque and equilbrium) 
20080115 

From Eric: If I have a 4" bar that has no weight value with a 275lb. weight on one side
and a 125lb. weight on the other side what would be the folcrum point? Please
keep the answer very simple. Also is there a fixed equation to figure folcrum points?
Is there an equation for if the 4" bar had a weight value? Answered by Stephen La Rocque. 





Hoisting an anchor 
20080110 

From ron: four men on a boat are using a capstan for hoisting an anchor weighing 2000lbs. The diameter of the barrel of the capstan at the section in use is 8in., and the pull on the chain carrying the anchor and passing around the capstan barrel is assumed to act at a distance of 1in. from the surface of the barrel. If the distance from the axis of the barrel to each point at which effort is applied to a capstan bar is 40in., what force must be applied by each man hoisting the anchor? Answered by Stephen La Rocque. 





Newton meters and ftlbs 
20061104 

From Michael: What is the correlation between Newton meters and ftlbs of torque? If an engine has 100ftlbs of torque,what would that equate to in Newton meters? Answered by Stephen La Rocque. 

