Question: How do forces and motion affect running?

Our Research: The whole time you are running there is friction between your shoes and the ground. Newton's Third Law of Motion is also involved. While running, the ground is pushing up on you, at the same time you are pushing down on the ground. Newton's Third Law is also demonstrated when a runner pushes off of his/her blocks at the beginning of a race. The runner is pushing on the blocks and the blocks are pushing backon the runner. When running on a track, you are constantly accelerating, since you are continuously changing direction on the corners of the track. You also accelerate every time you speed up or slow down. Your speed and velocity change as well. Both speed and velocity include the distance traveled compared to the amount of time taken to cover the distance. As soon as you push off the blocks at the start of a race, you have momentum. If your velocity increases as you're running (which is what you want to happen) you will gain momentum.

Running Shoe

Definintions:

~Speed: speed=distance/ time

~Velocity: the time rate of change of a position of a body in a specific direction

~Acceleration: the change of an object's speed or the rate of change of velocity

~Friction: a force that resists the relative motion or tendency to such motion of two bodies or substances in contact

~Newton's Third Law of Motion: for every action force there is an equal and opposite reaction force

~Momentum: the product of the mass and velocity of an object

## The Science of Running

## By: Kylie Kruger and Paige Ford

## Question: How do forces and motion affect running?

## Our Research: The whole time you are running there is friction between your shoes and the ground. Newton's Third Law of Motion is also involved. While running, the ground is pushing up on you, at the same time you are pushing down on the ground. Newton's Third Law is also demonstrated when a runner pushes off of his/her blocks at the beginning of a race. The runner is pushing on the blocks and the blocks are pushing backon the runner. When running on a track, you are constantly accelerating, since you are continuously changing direction on the corners of the track. You also accelerate every time you speed up or slow down. Your speed and velocity change as well. Both speed and velocity include the distance traveled compared to the amount of time taken to cover the distance. As soon as you push off the blocks at the start of a race, you have momentum. If your velocity increases as you're running (which is what you want to happen) you will gain momentum.

Definintions:## ~

Speed: speed=distance/ time## ~

Velocity:the time rate of change of a position of a body in a specific direction## ~

Acceleration:the change of an object's speed or the rate of change of velocity## ~

Friction: a force that resists the relative motion or tendency to such motion of two bodies or substances in contact## ~

Newton's Third Law of Motion: for every action force there is an equal and opposite reaction force## ~

Momentum: the product of the mass and velocity of an object## Bibliography:

Research from:~Paige and Kylie's brain

Definitions from:

~notes from class

Pictures from:

~http://www.engineering.uiowa.edu/~hawkeng/fall01/graphics/shoes1.gif

~http://www.runnersworld.co.uk/members/images/143940/cartoon_runner.jpg

Video from:

~http://www.youtube.com/watch?v=T7A_QUlMbvY