Group 3 Aka 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 synchronized swimming 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

Calculations Rotational Energy m=mass of the marble g=acceleration due to gravity h1=height from drop to ball k=mass moment of inertia for ball and marble ω=angular velocity of the tip of ball Translational Energy m1=mass of the marble m2=mass of the wood v1=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 Torque τ=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 mass m1=mass of marble m2=mass of the platform r2=distance from left to com of platform r1=distance of marble from far left side of platform (m1)(r1) + (m2)(r2) m1 + m2 Conservation of Linear Momentum m1=mass of ball g=acceleration due to gravity v1=linear velocity of ball h=height of ball held above center of Newton Cradle m2=mass of last ball v2=velocity of last ball m1gh = (1/2)m1v1^2 m1v1 = 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 those Ideas were quickly removed. The large ball for the marble to rotate into along with the center 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