Projectile Motion
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“Device used to prove that all things fall at the same rate due to gravity. When the device is triggered, one object is dropped while anothe object is shot horizontally from within, with the result being that both objects strike the ground at the same time.” —Hallock 1905
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General PhysicsSource
V. I. Hallock I.C.S. Refrence Library (Scranton: International Textbook Company, 1905) 7:11
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