How to make a Paper Airplane.

Emily collected a set of research based around the two statements: 

- Airplanes can fly only when total lift is large enough to counteract their weight. 

- Gravity is a constant force that pulls the plane to the ground. Here are her findings:

*Research by looking at physics equations, similar theories- what is actually proven. 

Newton's law of universal gravitation

Every point mass attracts every single other point mass by a force pointing along the line intersecting both points. The force is proportional to the product of the two masses and inversely proportional to the square of the distance between them.

F is the force between the masses,

G is the gravitational constant,

m₁ is the first mass,

m₂ is the second mass, and

r is the distance between the masses.

Newton's law of universal gravitation

Here is a video off YouTube relating to Newton's law: