Today in Physics class, we have discussed what will happen if we threw a ball vertically  upwards in the air while we are in the train is moving at a constant speed?  Majority of the class agreed that the ball will land back in your hand.  Well, while I was commuting on my way home today, a couple of teenagers hopped onto my subway car and started performing while the train was in motion.  While they were performing, the teenagers were dancing, running around, performing tricks with the subway poles, and even throwing their hats up in the air and catching them; all at the same time while the train was moving at a constant speed.  While they were performing, I've applied the concepts of Physics; I've determined that their is no air resistance in the subway car, which is one of the reasons why the teenagers were able to catch their hats and freely maneuver on the train, and also incorporating Newton's First Law.  This concept may apply not only the train, but it can also apply when you're on an airplane, a boat, or during a car ride.  


Preston Lee