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| A simple apparatus to demonstrate that a body propelled horizontally will fall vertically at the same rate as a similar body allowed to fall freely. Comprises of a spring loaded L-section launcher. There are holes in it for placing two 19mm dia ball. When the launcher is released by a push button, one ball falls freely whereas the second ball is projected forward. Mounted on a wooden box with a storage pocket for balls. Includes two steel balls.
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