concrete block (28cmx 15cmx1.9 cm supported only at its short edges )is of the order of 10 j. suppose the fighter delivers a downward hammer fist strike with a speed of 12m/s to such a concrete block in principle is there enough energy to break ?

Anonymous
timer Asked: May 4th, 2019

Question Description

in karate the fighter makes the hand collide at high speed with the target according to a crude estimate the energy is required breaka concrete block (28cmx 15cmx1.9 cm supported only at its short edges )is of the order of 10 j. suppose the fighter delivers a downward hammer fist strike with a speed of 12m/s to such a con crete block in principle is there enough energy to break the block ?assume that the fist has a mass of0.4kg?

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