swing
by Bany Rivas
how it works
when the body makes a swing motion with its legs your giving it the momentum to move upwards and then when you reach the climax point gravity takes over and pulls you back and repeats on the opposite side
Swinging on a Swing in Slow Motion
how they relate to the laws of motion
a swing works like a pendulum. when it builds up the momentum it will swing upward and gravity will bring it back down and the inertia of the swing will keep it moving as well as your body's motion