PROCEDURE: A simple spring gun may be used to propel a ball horizontally from a

Question

PROCEDURE: A simple spring gun may be used to propel a ball horizontally from a table top. The ball initially rests in a depression in front of a spring-powered plunger, and the plunger may be drawn back to either of three positions. The position of impact of the ball with the floor may be conveniently marked by laying down a sheet of carbon paper (carbon side up) with a sheet of white paper taped down on top of it so it cannot move. When the ball strikes the paper it will leave a clear, black mark at the point of impact.

Explanation / Answer

the uncertainty is reduced by doing the experiment in a room where wind is not blowing and for ideal conditions in vacuum.

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