# Force

## Definition of Force

Force is a push or pull on an object.

Point of application of the force is simply the location on an object where the force is applied.

The line of action of a force is a line through the point of application extending along the direction of the force.

## Notes on Force

FORCE

- pushing or pulling action
- How the Body Applies Force, How the Body Absorbs Force, Application of Force on an Object

How The Body Applies Force

- primarily through muscular system promoting movement of skeletal system to initiate movement
- number of forces combine to form desired movement ("Summation of Forces")
- body is faced with opposing forces (eg. gravity, air resistance, water resistance and friction)
- Newton's Laws of Motion

Newton's Laws Of Motion

1st Law: An object with not move or change unless a force acts upon it
2nd Law: The total force on a body is a product of the mass of the body and its acceleration
3rd: For every action there is an equal and opposite reaction

How The Body Absorbs Force

- a player needs to increase the time over which a force is absorbed
- decreasing force of impact and increasing time over which impact is absorbed
- force distributed over large area (base of support) has less than that applied to smaller area
- changing force through flexing joints
- flexion of joints, lower base of gravity

Application Of Force On An Object

- the greater the foce applied the greater the speed and acceleration of object
- if the mass of object increases, so does the force required to move the object