Gaussian Gun, Show how one ball starting at rest can gain enough energy to hurl another across the room., Each

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Study projectile motion as well as conservation of energy and momentum. Investigate the properties of magnetism.Four magnets and 10 steel balls are aligned on a low-friction linear trackA slowly rolling ball at the far end of the track is pulled forward by magnetic forceAccelerated to three or four times its original speed, the ball collides with a pair of balls set further down the trackThe second ball is propelled outward; attracted by the second magnet, the second ball sends a third ball careening even fasterWhen this happens four times in a row, the last ball flies freeOrder InfoBalls: 0.75 in. dia. (1.9cm).