1. Mark Roberts, Dmitri Kovalenko, Ryan Mitchell, Chris Guarnacci.
Lights Out
Mark Roberts, Dmitri Kovalenko, Ryan Mitchell, Chris Guarnacci.

2. Calculations y2=y1+vy1t+.5ayt2 0=(2.5)+0+(.5)(32.2)t2 T=.394sec
-to find the time we use constant acceleration equation.
0=(2.5)+0+(.5)(32.2)t2
-we shot from a height of 2.5ft and acceleration was g.
T=.394sec
(10ft)/(.394)=v
- velocity is dx/t
V=25.38 ft/sec

3. Calculations Cont. C.O.E. .5kx2=.5mv2 K=2.596 Slug/in
-By measuring how far we pulled back the spring, and given the velocity we were able to calculate the spring constant.

4. Visual Aid

5. Pictures Side shot to show the launcher about to shoot into the cup
The launcher converts elastic potential energy into kinetic energy

6. As the Marble shoots into the cup, the dowel rod shoots backwards, pulling the string at the bottom of the rod.

7. The string is then pulled through a pulley, pulling down on a light switch, flipping it to the off position

8. Helping lazy people all over the world be even more lazy

9. The end