Paper airplane's velocity can be measured as any other object can be determined by measuring its displacement over time. In other words, time the glide and measure the distance. Then divide the distance by the elapsed time to get the average velocity of the flight.
Assuming the paper plane is triangular shaped, multiply the length by the width.
Friction and velocity, and if u want to go into it a little more the weight, content, and amount of force exerted to throw the paper airplane.
There are many places where one could find tutorials on building the best paper airplanes. One could try sites such as YouTube for video instructions on crafting a suitable paper airplane.
The effect of a hole on a paper airplane would depend on the type of paper airplane the hole is on, and where it is on the aircraft.
i think the construction paper airplane will fly farther
Yes, the design of a paper airplane can effect its performance.
it means that the airplane is staying in motion but will soon crash;)
Forces, these forces can be created by the environment or the airplane.
if you place a paper clip on your paper airplane, you may find it improves performance by equalizing the load (weight) and lift (what the wings generate)
Farther than any other paper airplane that i know of
A paper airplane cannot fly without a wing.
Leonardo da Vinci made the first paper airplane
Instructables. See related link