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A 43.4-kg crate rests on a horizontal floor, and a 72.9-kg person is standing on the...

A 43.4-kg crate rests on a horizontal floor, and a 72.9-kg person is standing on the crate. Determine the magnitude of the normal force that (a) the floor exerts on the crate and (b) the crate exerts on the person.

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