1. Function Over Fashion Tiffany Sithiphone Wren Jackson Emily Cromer
Ebony Lemons
Stephen Marshall

2. Overview Steps Applied concepts Pulley systems Inclines Track
Mousetrap
Applied concepts
Conservation of momentum and energy
Torque
Projectile motion

3. Operation Golf ball rolls down inclines Runs off ramp into funnel
Ball falls into cup which pulls white cup and releases marble

4. Operation Mousetrap triggers pulley which raises flag
Marble falls onto track and triggers mousetrap
Pulley releases marble to group 7

5. Calculations Step I: The Decline.
Conservation of linear/rotational energy: m₁gh=½m₁v ₁ ²+½I ₁ ω ₁ ²
Step II: The Pulley.
Torque (about pulley): τ=Iα=I
Conservation of momentum (inelastic collision): m₁v ₁+ m₂v₂=(m ₁+ m₂)v’
Step III: The Curved Decline & Funnel.
Conservation of energy: mgh=½mv²
Step IV: The Track & Mousetrap.
Mousetrap and track—Conservation of energy and elastic potential energy
Step V: The Pulley & Flag.
Torque (about pulley)
Conservation of rotational energy
Subscripts:
1 golf ball
2 cup & marbles
p pulley

6. Setbacks Finding a ball heavy enough to execute the first pulley
Placing the cup in an accurate position for the golf ball to fall into.
Estimating the correct distance between the curved decline and the funnel in order to project a marble into the funnel
Setting a precise amount of tension in the string on the second pulley to raise the flag

7. Summary
Factors that weren’t calculated affected movement of the project
Multiple test runs wore out certain parts of device
Simplicity is key