By: Clayton Ginn, Chris Layman, Brett Ballinger

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  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

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

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.

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