The da Vinci CodeLeonardo da Vinci (14521519) is credited
Chapter 6, Problem 74(choose chapter or problem)
The da Vinci CodeLeonardo da Vinci (14521519) is credited with being the rst to perform quantitative experiments on friction, though his results werent 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 coefcient of static friction was 0.25 in his experiments. At what angle did Leonardos blocks begin to slide?
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer