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Physical Reasoning

Falling Objects

Consider dropping the following objects on the floor from a height of five feet: (1) a chalk eraser; (2) a raw egg; (3) fine glassware; (4) a lump of clay; (5) a feather; (6) a flat piece of paper; (7) a crumpled piece of paper. Develop a theory that connects the final state of these being dropped and their behavior while falling to their other material properties.

Contributed by Ernie Davis (, New York University, U.S.A. (18th September 1997)

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