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The problem of determining the angle at which a point mass launched fromground level with a given speed is a standard exercise in mechanics. Similar,yet conceptually and calculationally more difficult problems have beensuggested to improve student proficiency in projectile motion. The problem ofdetermining the maximum distance of a rock thrown from a rotating arm motion ispresented and analyzed in detail in this text. The calculational resultsconfirm several conceptually derived conclusions regarding the initial throwposition and provide some details on the angles and the way of throwing(underhand or overhand) which produce the maximum throw distance.

Maximum range of a projectile thrown from constant-speed circular motion