EF 151 Team Project
“Elevate by Bullets”
“Balls of Fury”: Will Sharber, Mark Platfoot, Lee Allan,
Jacob Hoekstra
Design Description

Bullet is dropped down copper piping.

Bullet free falls to set off mousetrap

Mousetrap snaps string holding door from releasing bullets down PVC pipe.

Bullets travel down pipe into copper faucet.

Bullets free fall into 2.0kg can full of sand and such.

As the can becomes heavier, the 1kg mass rises to desired height of 1m.
Stored Energy/ Construction Issues
 Stored Energy
 Construction Issues
 Incline of copper piping.
 The round bullets would not roll
against the wood. The friction
between the bullets and the wood
did not allow the bullets to roll down
the ramp.
 Potential energy within the
mousetrap.
 Potential Energy of Bullets rolling
down PVC.
 Gravitational energy of free falling
bullets.
 Kinetic energy of moving bucket of
sand and such.
 The coefficient of kinetic friction X
gravity > acceleration of bullets.
Conclusion
Our team designed a system that has the potential to raise a
1kg mass at least 1m by having a double pulley system. The
double pulley moves the mass 2 times the distance that our
sand and such bucket moves. The sandy bucket must now
have twice the mass as the 1kg mass in order to move it.