Chapter 2 Homework Solution
5. Galileo discovered that cannonballs of different weights landed at the same time.
Aristotle had said that the heavier ball would fall faster than the lighter one.
6. He found that in the absence of a force, an object wi
Projectile and Satellite Motion
Projectiles Launched at an Angle
Momentum. The concept of momentum brings together the ideas of both inertia and motion.
Ideas demo: An elephant and a mouse are charging toward you side by side.
Which one would you rather try to stop? Why?
For the most part
Motion is relative: Review Galilean Relativity
Before the time of Galileo people talked of speed as either slow or fast. Galileo was the first
to measure speed by considering the distance covered and the time it takes.