2. Building

2.1 Building

Basic measurements

Mass of car	900g
Mass of each wheel	Back wheels: 100 g. Front wheels:50g
Wheel diameter	Back wheels: 12cm. Front wheels: 5cm
Axle diameter	0.8cm
Length of string (power stroke)	15cm
Approx. number of wraps of string	17
Length of lever extension	Not Applicable
Overall length	39cm
Overall width	15cm
Overall height	15cm

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

Insert a diagram (Google Sketchup) showing the    

• Overall length, width and height

• Placement of mousetrap relative to front, back and side

• Location of wheels relative to front, back and sides

• Location of string attachment to the axle
• Any dimension your group found significant

 

2.3 Photograph of your car

Before improvement After improvement