A hiker who weighs 900 n is strolling through the woods and, Ask an Expert

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A hiker, who weighs 900 N, is strolling through the woods and crosses a small horizontal bridge. The bridge is uniform, weighs 3060 N, and rests on two concrete supports, one at each end. He stops one-fifth of the way along the bridge. What is the magnitude of the force that a concrete support exerts on the bridge at each end?

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