Mousetrap Car

This was a project for my 12th grade physics class.
The point was to build a car using a mouse trap as
a power source.  As you can see mine was built using
Legos, and used a large gear ratio to increase the
distance the car would go.  A string tied to the mouse-
trap turned the main shaft which then drove the gears
and eventually the wheels.  In order to get an A on the
project the car needed to go 3 meters; mine went 8m.
I figure I did fairly well.

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