From TV shows to textbooks, I have heard about the importance of air resistance ad nauseam. Mythbusters taught me about how air resistance prevents pennies dropped from the Empire State Building in New York from killing innocent people. My textbook taught me about the importance of drag in preventing Felix Baumgartner from reaching speeds that would physically break him. However, throughout my entire physics career, air resistance was never included in projectile motion. The concept of resistance was explained, such as friction and the many other types of resistance, but there was only a brief overview. When I inquired, I found out that air resistance is negligible and therefore left out because it involved too much work for the small adjustments
