result well be, the wood well break and the guy will fell nothing
I believe you are referring to the Makiwara. It is a flexible board mounted so that the top is about chest high. Karate practitioners punch it repeatedly to improve their technique and strength.
you cant Phineas and FERB is cartoon but their are wooden board in the hardware store
Fu
Many schools and styles teach board breaking, but it is not required in some.
4000 Newtons Newtons 3rd Law- every force applied has an egual and opposite reaction force so 4000n to the board=4000n force to the hand
Board, lumber
a bid wooden board with an advert on it placed where a lot of people will see it
The plastic material that it is made from is harder than wood. However, the breaking point of the joint in the plastic is designed to match the force required to break various thicknesses of wood. They should require the same force to break regardless of whether it is wood or plastic. Consult the manufacturer's specifications to match the appropriate colored plastic board with the size of wooden board, as they may not be the same.
That is the correct spelling of "plank" (a wooden board).
you have to have a leveled strong wooden board.
planche de bois
plank