MCAT Question: A uniform beam of length 2 meters and mass 10…

hard

A uniform beam of length 2 meters and mass 10 kg is pivoted at its midpoint. Two masses, 5 kg each, are attached at equal distances from the pivot point at opposite ends of the beam. What is the distance from the pivot point where a third mass must be placed to maintain equilibrium if it weighs 15 kg?

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