jake jones and dustin giltnane section d1 november 30, 2009

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.