Generalized impulse-momentum principle
You demonstrate hitting a board in a karate class. The speed of your hand as it hits the thick board is 14 m/s with respect to the board, and the mass of your hand is about 0.80 kg. How deep does your hand go into the board before stopping if the collision lasts for 2.0 X 10-3 s? What assumptions did you make? What other quantities can you determine using this information?
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