The Balanced Beam
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The Balanced Beam: A beam balances perfectly on a fulcrum. On one end is a basket with a 10-pound rock. On the other end, a 2-pound rock. How can you make the 2-pound rock side hit the ground without touching either rock, and the beam remains balanced afterward?
Answer: Move the fulcrum to the side of the 2-pound rock. The longer arm will make its lighte…