Group 3Aka

Rube GoldBEST

The Team

Collin Zimmerman

•Enjoys sunset walks on the beach

•Afraid of bats and peanut butter

•Probably wants some ice cream right now

Nick Humensky

•Loves to dance

•Aspires to some day join the olympic synchronizedswimming team•If he could be any animal, would be a kangaroo

Zack Barber

•One day wishes to be as cool as he dresses

•His life be like oooo ahhhh ooooooo ahh

•World class cartwheeler

Jeremy Moody

•Enjoys a good frolic

•Plays as Kirby in Super Smash Bro’s•Can bench Collin, Nick, and Zack with one hand

The Design •First, a marble rolls into a solid ball, rolling into a funnel

•Next, the marble rolls down the tube and hits a wooden piece that transfers its energy to a second marble.

•The second marble rolls down the remainder of the pipe until it knocks a platform off balance releasing a marble in the Newtons Cradle

•Finally, the Newtons Cradle knocks a wooden plank into the banner, releasing it for all to see

CalculationsRotational Energym=mass of the marble g=acceleration due to gravity h1=height from drop to ballk=mass moment of inertia for ball and marble ω=angular velocity of the tip of ball

Translational Energym1=mass of the marble m2=mass of the woodv1=velocity of the marble v2=velocity of the wood

Marble one Wood Piece Marble two

(1/2)(m1)(v1)^2 = (1/2)(m2)(v2)^2 = (1/2)(m1)(v1)^2

Torqueτ=torque of platform F=perpendicular force of the marble d=distance from center of mass

mgh = (1/2)kω^2

τ=Fd

Calculations Continued…

Center of massm1=mass of marble m2=mass of the platform r2=distance from left to com of platformr1=distance of marble from far left side of platform

(m1)(r1) + (m2)(r2) m1 + m2

Conservation of Linear Momentumm1=mass of ball g=acceleration due to gravityv1=linear velocity of ball h=height of ball held above center of Newton Cradlem2=mass of last ball v2=velocity of last ball

m1gh = (1/2)m1v1^2m1v1 = m2v2

The Construction

•The design and construction came in 3 steps:

•Originally we had a projectile motion section, along with a series of dominoes, but thoseIdeas were quickly removed. The large ball for the marble to rotate into along with thecenter of mass platform were added in the place of these two concepts.

•Some of the items used for the design that were not initially in the blueprints were:

-The handle of a vacuum

-The stick of a broom

-A set of mini bowling pins

1. Come up with a design

2. Completely redo that design

3. Build the new design with random items found in the workshop

In Conclusion…

We dropped the flag