Keith
Tommi
Josh
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Overall, our machine
utilizes gravitational
potential energy
which is transferred
into kinetic and
rotational energy
throughout the
process
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A modified toy car
launcher uses springs to
power forth a car
The car collides with a lever
arm which disrupts the
center of mass of the golf
ball and the plank
The golf ball rolls down 2
troughs…
…and lands in the cup
which causes the wheel to
spin and display our
banner!
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Projectile motion: the toy car is launched as a
projectile with no movement in the y-direction
Center of mass: the golf ball is balanced on the
COM of the plank until disturbed
Conservation of energy: the energy of the golf ball
is conserved as it rolls down the troughs
Rotational motion: the wheel’s rotation is used to
accomplish our ultimate goal
Arranging meeting times around our
groups schedules
 Not having a more organized and
thought out plan
 Calibrating the fine details of our
machine so that it did exactly what we
wanted
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