A high-speed video records the path of a painted dot on the rim of a wheel

PHYSICS · Subjective · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion

Problem

A high-speed video records the path of a painted dot on the rim of a wheel. Successive cusps of the dot’s cycloid trajectory along the ground are measured to be exactly one wheel radius apart. What does this observation imply about the wheel’s motion relative to the surface? Explain briefly.

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