2. Building

2.1 Building 

Basic measurements 
Mass of your car180g
Mass of each wheel (or one of they are all the same)15g
Wheel diameter5
Axle diameter0.4
Length of string (power stroke) 27cm
Approx. number of wraps of string12
Length of lever extension0cm
Overall length 26cm
Overall width29cm
Overall height10cm

2.2 Detailed dimensions of your car (Using Google Sketch-up) 

Height = 10cm
Width = 29cm
Length = 26cm

2.3 Photograph of your car 

1st Draft Model

2nd Draft Sketch

2nd Draft Model

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