The springs have weights attached to them; so, when at rest on a table, at east one of them will have a reading of g. In free fall, that attached weight is no longer applying any force to the spring (any spring) and so all the readings are zero.
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The springs have weights attached to them; so, when at rest on a table, at east one of them will have a reading of g. In free fall, that attached weight is no longer applying any force to the spring (any spring) and so all the readings are zero.