Only 50) If a person weighs 200 pound mass, how fast must they run in units of m

label Mathematics
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Oct 5th, 2015

Thank you for the opportunity to help you with your question!

1lb=0.454kg

200lb=200*0.454=90.8kg

1cal=4.19 j

1000cal=4190j

1/2*m*v^2=4190j

1/2*90.8*v^2=4190

v^2=4190*2/90.8=92.3

=> v=9.6m/s

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 6th, 2015

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