What sort of string should I use in a mousetrap car?
Md Ariful Islam
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Dr. Md Rushad Rahman
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You should use something that has good grip and little friction. For example, yarn isn't a good choice because it is prone to getting caught and has lots of friction. Strong fishing line or even dental floss would be better choices. Both are smooth and thin, but also strong enough to turn the wheels without snapping.
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