1. EF 151
Rube-Goldberg Device

2. Introducing… Andy Van Grinsven Matthew Weems William Teague
Russell Freda

3. Rough Draft of Device
Purpose: actions lead to a gate being lifted and allowing the car to roll down the ramp.

4. Pop-Ice Gate Lifting Device

5. Additional Pics

6. Energy Equations Assumptions: Mbigball >Mmarble
Perfectly Inelastic Collision-
mbbvbball + mbvb= (mbb+mb)(vboard)
vball=mgh=0.5mv2 vball=sqrt(2gh)

7. Energy Equations
PEi=PEf
Mgho=0.5mvf2
Mmgho=0.5mmarblevf2

8. Energy Equations Tension m1- mass of cup (with dominoes)
m2- mass of gate
m1>m2

9. In Conclusion
Our Rube-Goldberg device’s purpose to to perform the designated tasks and result in moving the gate for the car.
This device includes many actions which can be explained using equations learned in EF 151.
Pretty cool project, it was fun.