Hinge Board

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Hinge Board

A board with a hinge in the center that is in tension with a hammer balanced below

1J40.21

Use the hinged board to hang a hammer off the edge of a table or setup the larger version with a ladder. The system will be at equilibrium due to the fact that the center of mass of the hammer is below the far side of the hinge. At this position the torque from the handle exceeds the downward torque from gravity and tension.