Galileo discovered that mass does not affect the time it takes for an object to fall to the ground. Objects fall at the same rate (on earth it is.
Gravity and Air Resistance Chapter 3 Section 7-9.
Aim: How can we solve free fall problems? Do Now: A textbook and a metal sphere fall from the same height at the same time. Which one hits the ground first?
resistance of an object to a change in its motion
youtube/watch?v=45yabrnryXk&feature=fvw
