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Tennis Ball Launcher Fall 2010 - YouTube
projectile motion.wmv - YouTube
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2018 HS Physics Wars - The Sharon Academy
DIY: Rubber Band-Powered Tennis Ball Launcher
Tennis ball launcher
From the Community Stream: <p>This afternoon we went outside to do a simple machines obstacle course! We fired tennis balls… | Katapult, Holzprojekte, Holzspielzeug