d. Newton's Laws

On April 4, 1974, John Massis was able to pull two Long Island railroad passenger cars (approximately 80 tons – 70,000 kg) from rest. He was able to accomplish this feat by biting down on a bit that was attached to the cars with a rope, then leaning backwards and pressing his feet against the railway ties.

Essential Question: Did he have to pull with superhuman strength to accelerate the railroad cars?

John Massis railroad car pull

The Physics Classroom - Newton's Laws Review

http://www.physicsclassroom.com/Physics-Tutorial/Newton-s-Laws

Inertia Game

http://www.fastgames.com/rollball.html

Newton's Third Law tutorial:

http://www.physicsclassroom.com/Class/newtlaws/u2l4a.cfm

Newton's Third Law: ping-pong ball

http://www.youtube.com/watch?v=MvatmPlKOYQ&feature=player_embedded&safety_mode=true&persist_safety_mode=1

Vector Addition Animation (good!)