•Objects of different masses
fall at different rates.
•Moving objects will eventually
come to a full stop if no force acts on it.
•Objects of different masses
fall at the same rate.
•Moving objects will not
stop unless a force acts on it.
Aristotelian philosophers
of Galileo's day railed at such a mathematical
approach to physics, on
the grounds that mathematicians pondered
immaterial concepts,
while Nature consisted entirely of matter.