# WingChun Physics 101 – Intro to Izzac Newton’s Laws

May the force be with you! Remember Issac Newton’s First Law of Motions, “a body at rest will remain at rest, and a body in motion will remain in motion unless it is acted upon by an external force.”

What, then, happens to a body when an external force is applied to it? That situation is described by Newton’s Second Law of Motion.

“Force is equal to the change in momentum per change in time. For a constant mass, force equals mass times acceleration.” This is written in mathematical form as F = ma.

F is force, m is mass and a is acceleration. The math behind this is quite simple.

Force is the power of punches, Pak Sao, Tan Sao, Bong Sao, and more. Yes, understanding the physics behind it would significantly help you toughing up and up!

a is the acceleration, change its velocity, at a constant rate. So, in order to get the most efficient acceleration at the impact, you need to know the optimum distance for your techniques, where your hands reaches to maximum speed.

In WingChun Physics, F and a are in vector quantities, which means they have both magnitude and direction. The force can be the combination of more than one force. In this case, we would write the equation as ∑F = ma.

Think about the mass of fists, combining with the different parts of your body and angles, with the strong stance, adding more power source from stance shift and steps, the possibility of maximizing the force by training is almost infinite.

Therefore, we emphasizes a lot in the proper preparation, timing, precise motions, and stances in WingChun.  And WingChun practitioners have tendency to progress and transform significantly faster, once he/she started to grab this feeling of flows and coordination.  Indeed, it is under the multiple phases and reaching each stage feels really great. Let’s Feel the Force!

Sije Yuka Yoshioka

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