The zygomatic bone in the upper part of the cheek can be, Ask an Expert

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The zygomatic bone in the upper part of the cheek can be fractured by a 900-N force lasting 6.0 ms or longer. A hockey puck can easily exert such a force when hitting an unprotected face. A0 what change in velocity of a .17-kg hockey puck is needed to provide that impulsive force? What assumptions did you make? B0A padded face-mask double the stopping time. By how much does it change the force on the face? Explain.

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