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Jaffa Roll Expirement

This graph shows what surface our jaffa rolled best on in the experiment. Our marble went further in the hall with the end result of 7.04. The least our marble rolled was 1.02 and it was on grass. There were also 2 different ramps. The largest one was 1.08m and the length was 1m. The shorter ramps height was 1.4cm and the length was 1m.