For two wheels moving along concentric circular arcs (inner and outer wheel of a two-wheeled cart on a curved path), the distance each covers along a semicircular path equals pi times its own radius; the difference in distances traveled depends only on the difference in their radii (i.e., the wheel spacing), not on the mean radius.
With mean radius 10 m and unit (1 m) spacing between the wheels, the inner wheel travels along a radius of 9.5 m and the...
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