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The Mystery of Bruce Lee’s Superhuman One-Inch Punch

The Mystery of Bruce Lee’s Superhuman One-Inch Punch

#Mystery #Bruce #Lees #Superhuman #OneInch #Punch Welcome to InNewCL, here is the new story we have for you today:

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Nobody wants to deal with so many interactions. Instead, in physics, we treat the ball as one thing – and that’s mostly fine. However, to ensure that other people understand what we are doing when we model an interaction, we need to define our “system”. Maybe, to make it easy, we decide that the system is just the ball itself. If this is the case then we are only concerned with the ball’s momentum and any forces due to external interactions and we can ignore all these atom-atom interactions. We might even forget the interaction between the ball’s fuzzy surface and its inner rubber part.

It is also possible to have a system consisting of more than one object. Imagine a tennis ball attached to a soccer ball with string. If I want to use a system consisting of both spheres, then I would only consider forces due to external interactions. I wouldn’t include the force the string exerts on either ball.

For the momentum of this system, I would use its total mass, which is the sum of the mass of the spheres and the velocity of the system’s center of mass. Since the soccer ball has a greater mass, that center of gravity would be closer to the string and farther from the tennis ball.

Courtesy of Rhett Allain

Guess what? Humans are also made of stuff, and a person also has a center of mass. But human physics can get messy as they can change shape. Different parts, like arms and legs, can be positioned differently. However, a good rough estimate is that a person’s center of gravity is somewhere between their belly button and their spine when standing. For a seated person, their bent legs move their center of gravity a little closer to their chest.

Bruce Lee’s system plus the goal

From a physical point of view, every shot can be complicated. So let’s make it as simple as possible by considering the 1 inch punch for a system consisting of a puncher and a punchee. Let’s call them Bruce or Joe because there’s a famous video of Bruce Lee beating martial artist Joe Lewis at an exhibition.

With this system we can ignore all forces due to internal interactions. Yes, that means we don’t really need to look at the power of the 1 inch punch. It is an interaction between two objects in the same system (Bruce and Joe).

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