1. Brian Ghere Laws Nelson Kevin Kelly
Trapped!
Brian Ghere
Laws Nelson
Kevin Kelly

2. Overview Ball rolls down a ramp
Ball falls out and hits another ramp changing its direction
Ball rolls down the other ramp and sets off a mouse trap
PVC pipe
Mouse trap
Wood base

4. Energy Conversions
1st Conversion: Ball rolls down the first ramp changing energy from potential to kinetic.
Mgh=(1/2)mv^2+mgh
(5g)(9.81m/s^2)(.2699m)=(.5)(5g)v^2+(5g)(9.81m/s^2)(.2223m)
V=.966m/s
2nd Conversion: Ball hits the second ramp causing energy loss.
(1/2)mv^2=mgh+Eloss
(.5)(5g)(.966m/s)^2=(5g)(9.81m/s^2)(.0254m)+Eloss
Eloss=.109J
3rd Conversion: Ball rolls down the second ramp.
(5g)(9.81m/s^2)(.2223m)=(.5)(5g)v^2+(5g)(9.81m/s^2)(.0191m)
V=2.00m/s

5. Conclusion 95% success rate Developed good team working skills
Real world application of conservation of energy equations