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Wing Tzun &
Latosa Escrima
Natural Law Of Motion
Wing Tzun
Natural Law Of Motion (Physics)
Vocabulary
Balance: When the
center of gravity falls above the foundation, an object is in a stable state
and will not trip over easily.
Basic Movement Theory:
Whenever moving, you should step with the foot closest to the direction of
travel first. This will keep you from crossing your feet and becoming
unstable. Stepping with the foot closer to the direction of travel first
will also allow for smoother and quicker movements.
Center of gravity (same ass center of mass) :
The point on an object where all its weight seems to be focused. ON an
object of uniform shape and weight, the center of gravity is in the middle.
On an object of non-uniform shape and weight, the center of gravity is
toward the heavier end. To remain stable, the center of gravity should be as
low as possible, above the foundation.
Gravity: An
attraction between objects due to mass.
Hard Martial Art systems or style: These systems rely on wide stances and
linear moves, with full focus of power into a single strike.
Inertia:
Resistance to change in motion. An object at rest tends to stay at rest; an
object in motion tends to stay in motion.
Mass: The quantity
of matter in an object. When acted upon by gravity, we can use mass
interchangeably with weight.
Momentum: The
product of the mass of an object and its velocity. The heavier the object,
and the faster it travels, the grater the momentum.
Pounds Per Square Inch:
The narrower the base of an object, the more pounds
per square inch. A narrow base will be less stable than a wide base, but it
will also have more penetrating capability.
Sensory Overload:
By striking and kicking with explosive combinations to as many targets as
possible in the shortest amount of time, you will create “ sensory overload”
and send your opponent into a state of confusion and chaos.
Soft Styles: These
style rely on more flexible stances and circular moves, with the power
building through one or more “set-up” strike.
Impulse: The
change in momentum. The faster you can change the momentum, the greater the
impulse, and the grater the power.
Kinetic Energy:
Half the mass times the speed squared. Kinetic energy depends on mass and
the speed of the object. If a fighter can double his speed, he can quadruple
his kinetic energy. Kinetic energy has a grate capability of doing damage.
Resultant: The sum
of all vectors. When throwing a strike, we should strive towards making the
resultant as long as possible.
Rotational Inertia:
Resistance to change in an object that is rotating. It
takes a force to change the state or direction.
Vector: An arrow
symbolizing the strength and direction of a force. The longer the arrow, the
stronger the force. For maximum power, all vectors must point in the
direction of your strike.
Velocity: A
measure of the speed of an object and its direction.
Acceleration:
Change in speed and / or direction. An object that is in motion and changes
its direction (a car driving up the clover leaf on-ramp to the highway),
will accelerate even if there is no change in speed. You can feel that
acceleration is taking place by the way your body lurches forward, back or
sideways.
F=ma: Force equals
the mass times the acceleration. A lot of weight and a lot of speed will
produce a lot of power. A lightweight fighter can make up for the lack of
sufficient mass by being faster than a heavyweight.
Force: Any
influence that can cause an object to be accelerated.
Projectile: An
object following a curved path from over the top (over head strike). In the
path of a projectile, only the vertical vector component will increase or in
size, while the horizontal vector component remains constant. Because of
gravity, the resultant will be at its longest in the downward motion of the
projectile.
Adding Momentum:
When two object move toward each other and collide, the force of impact will
de stronger than if only one object is moving, providing that the speed is
the same in both cases.
Conservation Of Angular Momentum:
Whenever a rotating body contracts, its rotational
speed increases. A rotating body will cover the same area within a specified
time frame. A rotating body which is “spread out” will caver a large area
than one which is contracted. Therefore, the contracted body will need to
spin faster in order to cover the same area.
Friction:
Resistance of motion between two solid surfaces, liquids, or gases. Friction
is less in air than in water or on ground.
Linear Speed: The
tip of a rotating system will move faster than the center, even through the
rotational speed (revolutions per minute) are the same throughout the
system.
Newton’s First Law Of Motion:
An object in motion tends to stay in motion unless acted upon by some
outside force. Martial Artist strive toward throwing a continuous
combination, rather than many single strikes.
Newton’s Second Law Of Motion:
The acceleration of an object is directly proportional
to the net force acting on the object, is in direction of the net force, and
is inversely proportional to the mass of the object. Whereas a big force
produces a large acceleration, a big mass resists acceleration.
Newton’s Third Law of Motion:
To every action there is an equal and opposite
reaction. You cannot hit someone or something without being hit back with an
equal and opposite force.
Rotational Speed:
The number of rotations per unit of time (revolutions per minute). In a
Spinning technique, the revolutions per minute in the center is the same as
the revolution per minute near the tip. However, the tip will move with a
faster linear speed because it is farther from the axis. The rotation speed
is the same regardless of how far you are from the centre, but the linear
speed is proportional to the distance from the axis.
Torque: The
product of the lever arm and the force. The longer the lever arm the less
force is needed to produce a given amount of torque.
Energy: That which
enables you to do work. If you have a lot of energy, you can do a lot of
work.
Potential Energy:
Energy that is stored and held in readiness. Ones released, it becomes
Kinetic energy.
Power: In physics,
power is equal to work divided by time interval. Cutting the time interval
enables you to attain more power. The Martial Artist often thinks of power
in terms of how much damage one is able to do when landing a strike.
Squared: A number
times itself.
Work: Force times
distance. For a given force, you can use a shorter distance to do less work.
Work takes energy, so if you can do as little work as possible, you can
attain a considerable amount of power.
Impulse: change in
momentum, or the force time the interval. The shorter the time, greater the
force. And vice versa.
Resonance: A
vibrating force or wave that causes a vibration in an object at its natural
vibration frequency.
Characteristics &
Concepts of Wing Tzun
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Sifu Edgar Rotger is the Head instructor for
Wing Tzun Kung-Fu and Latosa Escrima Filipino Self-Defense System
in
Brooklyn NY (Park Slope)
and is a 2nd Technician Level in Wing Tzun & 2nd Technician Level in Latosa
Escrima.
(Technician levels are comparable to black belts in other styles.)
A FREE week of Wing Tzun (WT) and Latosa
Escrima lessons!
We have also privet lessons for Wing Tzun and Latosa
Escrima as well.
Call now: 646-369-7704
(Hablamos Espa~nol)
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