Leonardo da Vinci (1452-1519) is credited with being the first to perform quantitative experiments on friction, though his resul

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3 years ago

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Leonardo da Vinci (1452-1519) is credited with being the first to perform quantitative experiments on friction, though his resul

ts weren't known until centuries later, due in part to the secret code (mirror writing) he used in his notebooks. Leonardo would place a block of wood on an inclined plane and measure the angle at which the block begins to slide. He reports that the coefficient of static friction was 0.22 his experiments.
At what angle did Leonardo’s blocks begin to slide?

Physics