Hi, I am trying to figure out the free body diagram of this card dispenser. The card is inserted at the top and the card is dispensed from the slit. Need help finding out the free body diagram of the card while it is still inside the machine, being dispensed, when the card is dispensed and when the card is being distributed (flying) need help labeling the coefficient of friction, air resistance and other contributing factors. Also please explain the physics behind this machine. Will rate up!