The Marble-nator
Brought to you by:
Kristen Holdway Gabe Froula
& Rayshawn Lanier
Meet the team
Rayshawn Lanier – Data analyser
Gabe Froula – team organizer/idiot
Kristen Holdway – design/product tester
How It Works
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The first baseball rolls down the ramp and strikes the second baseball.
The second ball falls into the floor, and the tension created in the string pulls the pin, releasing the
marbles.
The marbles move through the tube and fall into the bucket, which pulls the bottle from its stand as
falls.
The weight of the bottle then lifts the mass.
Why It Works
• First Ball: Gravitational Potential →Kinetic Energy
• Second Ball: Inelastic Collision with first ball activates
Gravitational Potential Energy, which creates tension in the
string & pulls the pin
• Marbles fall: Gravitational Potential Energy → Kinetic
Energy
• Marbles fall out of pipe: Kinetic Energy + Gravitational
Potential Energy
• Marbles collide with the bucket: Perfectly Elastic Collision
causes the bucket to drop
• Bucket falling pulls the bottle from its stand: Kinetic Energy
+ Gravitational Potential Energy of the bottle → Kinetic
Energy of the bottle
The Major Problem
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Bucket displacement ≠ Kg displacement of 1
meter
Movement of pulley
Addition of spool
Finally, addition of bottle as counter-weight
Addition of sand to absorb impact
Conclusion
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1) Patrick is the best TA ever.
2) Marbles suck.
3) Joey is our savior.
4) Thank God for Christmas Break.