Not just Plato, Aristoteles even more. He kept Mechanics for 2000 in the dark ages, by assuming that heavier objects fall faster than lighter objects in proportion to their weight. He argued that a 10-pound stone would fall 10 times faster than a 1-pound stone. Continuous force is needed for continuous motion - without a force pushing it, a moving object would immediately stop. In fact continuous force leads to conti…
"He kept Mechanics for 2000 in the dark ages," You can blame him for being wrong at first, but somewhere around, oh, 200 years later (very, very conservatively), the people who treated him as an unimpeachable source really ought to be assigned about 100% of the responsibility. "A bit of mathematics would have helped." Your use of modern terminology in the previous sentence leads me to think you're not clear on how pr…
Completely agree, and to add some color: Aristotle lived about 100 years after Pythagoras, meaning in his time a²+b²=c² was groundbreaking material.