The Team
Overview of Device 5lb weight starts to roll/pulls 1kg mass Weight stops at gate, hits wheel Wheel releases nail clipper Clipper pops balloon The gate swings open 5lb rolls to bottom/pulls 1kg up 1 meter
Stored Energy Compressed nail clipper =18.9 joules Counterweight .45kg at height of 1 meter 5lb weight- starts up .5 meters .2kg bottle of sand at height 14 inches Skateboard wheel .25kg drops a meter Compressed nail clipper =18.9 joules PE0+KE0+PEspring+Win=PEf+KEf+PEspring+Eloss
Design/Construction Issues Tried to use fishing reel Tangled strings Gate may slip Balloon not popping properly Mass is lifted too quickly Budget was not a problem
Conclusion Our device consistently lifts the 1 kg mass A little too fast Lots of time and effort Overall: Success