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Little Balls, Big Balls

By: Clayton Ginn , Chris Layman, Brett Ballinger. Little Balls, Big Balls. Pictures of device. List of items. Marble Funnel Cardboard box Duct tape Clear plastic tubing Hot wheels track with loop Mousetrap String A screw Small plank of wood Fabric Bowling ball. Summary.

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Little Balls, Big Balls

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  1. By: Clayton Ginn, Chris Layman, Brett Ballinger Little Balls, Big Balls

  2. Pictures of device

  3. List of items • Marble • Funnel • Cardboard box • Duct tape • Clear plastic tubing • Hot wheels track with loop • Mousetrap • String • A screw • Small plank of wood • Fabric • Bowling ball

  4. Summary • Box gets bumped causing the ball to fall into funnel • Ball follows track to the mousetrap • Lands on the mousetrap setting it off • A string attached to a screw on one end, is pulled by the mousetrap from the other end • The screw is pulled out from under the wood • The bowling ball rolls down the wood revealing the banner

  5. Equations • mgh = .5mv^2 + .5Iᾠ^2 • T = F * r * sin(Ө) • R = (mr + mr + . . . mr)/(m + m + . . . m ) • Dy = vy0(t) + .5(a)(t^2) • Dx = vx0(t)

  6. Problems • We had some problems finding the right size ball to fit in the tubing. • Once set up it took multiple runs to find the right placement of mousetrap. • When the ball hit the mousetrap we lost it frequently because it was flung out of our sight. • Since we used the cheap mousetraps they kept breaking on us after 2 or 3 runs.

  7. Conclusions • While constructing our project our goal was to spend the least amount of money but still have a quality project meeting all requirements. • Being able to apply the concepts learned in class as a group makes engineering so much more engaging than doing written work by yourself.

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