The Redneck Flag Raiser

Jake Jones and Dustin Giltnane

Section D1

November 30, 2009

The Basics

Our device is simple yet effect. It utilizes physics in a complicated mechanical from to complete a simple yet entertaining task. We used a marble, toy truck, tubing and pipe.

The BeginningOur device can be described in

a few simple calculations. In order of action. Depicted in the

picture Torque(T=RF),

Rotational momentum(Iw)

, and Conservation

of energy(mgh=1/2Iw^2+1/2mv

^2)

The JumpThe next portion of

our machine involves projectile motion [(y-

yi)=(tan(a)(x-xi)-g/2vi^2(1+tan^2(a)

(xxi)^2], Conservation of

energy(mgh+1/2mv^2+1/2Iw^2=1/2mv^

2+1/2Iw^2) assuming the datum

to be at the bottom of the funnel.

The ChevroletOur next series of events begins when the marble collides with a “T” of PVC applying torque,(T=RF), allowing for tension in the rope to pull out a screw with a force,(F=MA), freeing the truck to accelerate down the ramp while conserving energy, (mgh=1/2mv^2+(1/2Iw^2)4).

Raising the Banner

To conclude our machine the toy truck will launch of the ramp, projectile motion, and collide with an upright board, conservation of momentum (m1v1=m1v1+m2v2+m3v3). This will cause the balanced mass center of mass[(ax(T)-ax(H)/(a(T)-a(H),(ay(T)-ay(H)/(a(T)-a(H))]. This inelastic collision allows the weight to fall to the ground while raising the flag with use of a pulley. (conservation of energy)

Hardships

During our construction and design process the worst problem we encountered was inability to find necessary parts resulting in a change of device design. A smaller obstacle was aligning parts to provide fluid function. Overall it was a very successful operation.