Isaac Newton’s second law of motion is one of the most universally recognised equations of all time, possibly second only to e=mc^2. Using this beautiful formula, we can deduce exactly why objects of different masses will accelerate towards the earth at the same rate during free-fall. It gets a bit mathsy, but stick with it.
This video couldn’t have been filmed without the help of Mattie McDonagh of the YouTube channel Swish. I hope you will all hop over to his channel and subscribe: http://www.youtube.com/c/swished
Hammer/Feather Drop (Original Video): https://www.youtube.com/watch?v=4mTsrRZEMwA
Veritasium’s ‘Misconceptions about falling objects’: https://www.youtube.com/watch?v=aRhkQTQxm4w
More On Newton’s Second Law: http://www.physicsclassroom.com/class/newtlaws/Lesson-3/Newton-s-Second-Law
Knowledge Box: http://www.youtube.com/alexjoconnor