If I was to build a soap box racer, should I build it heavy or light? What difference would it make to performance, how and why?
by 
Fergus McIver
ANSWERS: 1
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I would say heavy. Acceleration on downgrades will be the same as a light car, but the additional inertia will better overcome wind resistance. The only catch is that with more weight there might be greater rolling resistance unless the wheels are well designed.
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