How long must board be so that it doesn-t tilt down
You want to slowly push a stiff board across a 20 gap between two tabletops that are at the same height. If you apply only a horizontal force, how long must the board be so that it doesn't tilt down into the gap before reaching the other side?
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If you apply only a horizontal force, how long must the board be so that it doesn't tilt down into the gap before reaching the other side?
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