How does a rat trap car work
By winding the string around the axle the mouse trap's spring is stretched and now you have your stored energy. As the mousetrap car is released the mouse trap pulls the string off of the axle causing the wheels to turn and off the vehicle goes.mousetrap car basic propulsion theory Step #1 A string is attached to the mouse trap's lever arm and them attached to the drive axle.his book will teach you step-by-step how to build the BEST mouse trap projects on the face of the planet and it explains all the physics behind how these contraptions work. Endorsed by teachers around the world. 100 pages. This book has sold more than 25,000 copies world wide.