Question 71219
A worker tearing down a barn, uses a pinch bar 4 ft. long with the shorter end 2in. from the fulcrum. If the worker can excert a force of 150 lbs. at one end of the pinch bar, how great a force can he excert at the other end? 

w1 d1 = w2d2 
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w1*2 = 150*48
w1 = 3600 lbs. of force
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Cheers,
Stan H.