Question:

A worker tearing down a barn uses a crow bar 4 ft. long with the shorter end 2 inches from the fulcrum.?

by Guest34505  |  earlier

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If the worker can exert a force of 150 lbs. at one end of the crow bar, how great a force can he exert at the other end?

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  1. Ask this in the physics section of Science/Mathematics on YA.  They will give you the formula.

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