Mountain+Biking

=media type="youtube" key="ZKyPdKlw1gc" height="360" width="489"=

Newtons Laws of motion on Mountion Biking

Inertia- When the bike is stationary, ready to move it will not move unless an external force is acted upon it.

Action- moving feet aroundn in a circular motion makes the wheels move round which makes you move foward or backwards.

Acceleration- When feet move around fast the bike accelerates faster and moves along the ground faster, when going down a hill gravity pulls you down which brings you down the hill faster. when you are going up a hill, gravity is pulling you down so you go slower and you use more energy.

media type="youtube" key="WDiAUeO6gkM" height="357" width="481" Projectile motion:

In this video the guy uses height angle and speed to preform these jumps to perfection. The height is how high he is jumping from The speed is how fast he is travelling up to the jump The angle is the degree of the ramp or surface.

media type="youtube" key="s2vq5i15xek" height="390" width="480"

the video above is just about the laws of gravity when the biker applys force down to the handle bars he pushes down the bike and applys newtons 3rd law the law or action.