Transcript Mean-Machine1.ppt

R-dog
We used….
• Pvc pipe
• Scrap wood and metal
• Marbles
• Dominos
• Mousetraps
• Fishing line
• Nails
• Plastic cups and pulley
-Device is set off by a mouse trap, triggering a marble
through a series of steps including the use of a
pulley, a launcher, dominos, and another
mousetrap which all turns on an alarm clock.
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Equations used to find calculations
Conservation of rotational energy
Conservation of translation energy
Center of mass
Projectile motion
Conservation of linear momentum
Blue print for the device originally seemed
flawless. Ran into a few problems.
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Projectile motion on see-saw was unpredictable and
hard to keep consistent eventually leading to
minimizing the launch distance and height.
Lack of ideas for an electrical device with an old
fashion switch. Led to us making and wiring a
makeshift outlet that is turned on by a light switch.
Alarm clock is plugged into the outlet.
Mousetrap injuries.
Flimsy cups on a pulley were hard to deal with.
Setting up dominos can also be a pain.