Physics help...A person with a blackbelt in karate has a fist that has a mass of

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cooleyo1017

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0.62 kg. Starting from rest,? A person with a blackbelt in karate has a fist that has a mass of 0.62 kg. Starting from rest, this fist attains a velocity of 9.0 m/s in 0.15 s. What is the magnitude of the average net force applied to the fist to achieve this level of performance?
 
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