Phil+Walker

MH-6 Little Bird

Here you see four Rangers riding on two benches mounted on an MH-6 'Little Bird' helicopter. In this picture, the helicopter is moving forward while banking (turning) left. The force of the helicopter moving forward pushes the Rangers backwards, so they experience what are known as positive G forces, or a sensation that your eyeballs are being sucked in. As the helicopter turns to the left, they are pushed to the left, also experiencing a force pushing them into the turn irregardless of which bench they are on.
 * Force:**

Gravity acts on them in two separate ways: the Earth pulls the helicopter down, while the lift created by the rotors of the helicopter pulls the helicopter up. This same pattern of forces applies to the men on the bench-gravity pulling them down, while the bench pushes up.
 * Gravity:**

The air resistance against the helicopter and men slows them down, creating friction. Each person on the bench is also creating friction, as they slide around as the helicopter flies. As the helicopter flies, it flies through the air, and the air acts back on it by pushing back. The faster the helicopter flies, the harder 'push' the men feel.
 * Friction:**





References

http://wordpress.mrreid.org/2012/10/30/surviving-acceleration/

http://science.howstuffworks.com/environmental/earth/geophysics/question232.htm

http://www.physicsclassroom.com/class/newtlaws/u2l2b.cfm

http://www.stmary.ws/highschool/physics/home/notes/dynamics/friction/FrictionRel.htm